Is anyone using Debian Sid for gaming?

I'll do you one better: I'm using Debian Stable for gaming and there's nothing bad to report. Based on my experience I'd recommend that you use Stable first, unless you feel you really need Sid. I previously ran Arch Linux, but after switching to Stable and manually sourcing a few critical cutting-edge applications through e.g. Flatpak, it feels the exact same. I don't feel like running the entire system as bleeding edge is a good idea when you can just run a couple dozen things as cutting-edge instead.

If you plan on using Sid instead of Stable, most of the following will not apply:

Lutris has its own Deb repo if you need the latest updates, or it's available as a Flatpak.
If you use Flatpak Lutris and want to use MangoHud, you'll need to install the Flatpak version with flatpak install flathub org.freedesktop.Platform.VulkanLayer.MangoHud (I don't think it shows up in the normal store)
The one gotcha I've found regarding Debian Stable and gaming is that Mesa will fall out of date as the release cycle goes on and probably won't be backported. The solution is that running games via Flatpak (Lutris, Steam, etc.) uses Flatpak's Mesa instead, which is cutting-edge. You can also try to compile a local Mesa version with this script, and you can manually trigger games to use this version instead of the system version. It does work, but it's more complicated and a little bit more messy.
I use the Xanmod "Main" kernel for a more recent kernel that isn't too bleeding-edge - it stays on the previous Linux kernel version until a few point releases have come out.
CoreCtrl is available as a bookworm-backport. I manually backported it myself but it looks like it's official now.
I'm running Wayland and KDE, with no issues to report (even with gaming)
I've manually compiled Libstrangle for FPS limiting, but I've found that I can use MangoHud to transparently limit FPS as well, by using the following environment variable: MANGOHUD_CONFIG=fps_limit=YOURFPSHERE,fps=0,frame_timing=0,cpu_stats=0,gpu_stats=0,background_alpha=0. When I want MangoHud to act as normal, I switch it to MANGOHUD_CONFIG=readcfg which uses my normal config instead. Notably, Libstrangle cannot be used with Flatpak Lutris, so FPS limiting will need to be done with MangoHud if you want to limit Linux games. DXVK games can be limited with DXVK_FRAME_RATE as well, if that's all you need.
I make heavy use of Flatpaks for any user applications that I need to keep more modern
If it's not available as a Flatpak, I tend to use Homebrew to keep any other critical applications up-to-date (usually some CLI tools)
I use cargo through rustup to keep some rust programs updated
I use deb-get with a couple programs that aren't on any real repos in order to get updates
I've compiled a couple backports by following this guide in a stock Debian Stable VM, then copying the .deb files back out to my main system. So far this has been super easy, but I don't want to do this unless I have to.
If a program needs to be manually compiled, I try to install it using checkinstall. checkinstall basically fake-runs an installation and notes where everything goes, then stuffs it all into a .deb for you for a proper installation that can be uninstalled later. It's a little buggy and doesn't always work, but if it does it's preferable. I rarely am forced to compile something that actually needs to be installed to system, but I've used it a few times with good success.
(Do not make a FrankenDebian)

I can't think of anything else regarding Debian Stable that I've done at the moment. Anything else has just worked as I'm used to on a bleeding-edge distro like Arch Linux. Debian's large package base has really helped me with obscure programs that I used to need to compile manually with Arch Linux.

Excellent write up. I just wanted to add I am also using Debian stable (bookworm) and it’s going great. I use steam and I’m playing Baldur’s gate with no issues. I have a nvidia 1070.
(my home server is arch btw)
This looks like a detailed write up. I need to sit down and digest this information (currently out and about). I’ll come back to you with questions I’m sure.
- Most of it is relating to getting the stability benefits of Debian Stable while keeping your system modern like Sid (not necessarily just for gaming). Keep in mind that Sid is inherently volatile/unstable and a lot more prone to breakage, so I wouldn't recommend going that route unless you feel you have a real usecase, as you might find yourself needing to manually fix problems every so often on a Sid install. For a typical gaming workload I don't feel like Sid is required, and with just a couple tweaks (Flatpak Steam/Lutris + newer kernel version mainly) you can get Stable to perform the same role cleanly. You can always upgrade into Sid later if you feel like you really can't handle Stable's older native packages.
  Also, idk if it was explicit enough but the point of the original post is that yes, Debian is great for gaming, even with Stable. I would base your distro decision on literally any factor besides gaming, because if Debian Stable can do it then every distro can do it. You mentioned annoyance with Red Hat in your original post, so a strong selling point of Debian is that it's a community distro. Arch Linux is also a great community distro that's bleeding edge like Debian Sid.
  Debian is generally easy to use but it's still a tiny bit more DIY than most popular distros - if you find Debian too annoying to set up you can always try Linux Mint/Linux Mint Debian Edition, which is a very reputable Debian-based distro.

I use regular bookworm with steam/Mesa/proton installed as flatpak

Works great, 10/10

Are you running into system access limitations? For example, mesa or proton needing to access system files, services or whatever.
- You can give flatpaks permissions for those. Flatseal is a great GUI for that if that's your thing.

I use sid as my daily driver with official debiam steam packages etc, everything is really smooth since long time so if you want to try you should :)

Excellent! This is my current setup as well.

I do my gaming on Bookworm with a handful of extras, and it works very well.

There is a certain group of people who insist that only the distros with the latest packages are good for gaming. Those people are wrong in most cases.

Unless you have a very new GPU (released less than a year ago), your games are not likely to get any benefit from the latest kernel.

Unless your games require the very latest Vulkan features and you run them without Steam, Flatpak, or any other platform that provides its own Mesa, you’re not likely to get any benefit from a distro providing the latest version of it.

Practically everything else that games need is comparable across all the major distros, so choose one that makes you happy, not one that some shill claims is best for gaming. Even Debian Stable, contrary to the undeserved bashing it often gets by a certain kind of gamer, is generally excellent for gaming.

This is encouraging. I do have somewhat older hardware but you are right. Even updating the kernel for update sake in other distros don’t seem to bring me visible value other than just updating to the lasers available.
@ono bookworm?
- Bookworm is the name of the current Debian Stable release. The next one will be called Trixie.

Yup, I use Tumbleweed and it seems to get updates as fast or faster than Arch most of the time, and it seems more stable to me. I used Arch for ~5 years and Tumbleweed for 3-4 now, and I've had to fix Tumbleweed much less (and each time was a simple snapper rollback and try upgrading again in 2-3 days).
When I used Debian, I would stick on the next stable (i.e. testing, but with a named release) until a few months after the release. For example, if I was on Debian right now, I'd probably be on bookworm (old testing, current stable) for another month or so, then upgrade to trixie and stay on that until a few months after trixie releases. Debian testing tends to get pretty unstable right after a release as a ton of things get merged from sid after the freeze, so I give it some time to stabilize.
Both are great. I just found I'm not a fan of how Debian does certain things and I generally prefer Arch and openSUSE.

You could use distrobox for gaming, make an arch one and game from there without worrying about dependencies

I use Sid for gaming and it has always worked perfectly. I am very happy with it.

What does your /etc/is-release say for code name? I installed bookworm and then pointed apt to unstable as instructed in the Debian Wiki but when I did the full-upgrade (also as instructed in the wiki) now it says code name= trixie. Not a big deal, it’s just kinda strange. Maybe it’s supposed to as technically Trixie is the “unstable” at the moment. Idk. Just curious.
- I also have VERSION_CODENAME=trixie. Never been an issue so far.

Yes? ;)

Lxc arch with glx /devs passthrough, runs steam and steam games beautifully.

This is my workflow though, I have an lxc for work/development, an lxc for everything really, once you fit it in its just second nature.

The debian host is there for wm more than anything.

For what it's worth, Mint has a Debian-based version that I've heard great things about. It would probably have lots of the legwork done for you (getting flatpak, etc).

Very true! But I’ll stick with base for now. As I mentioned to someone else, I just don’t want to keep running into the endless loop of a distro doing something that affects downstream and then I’m affected by it too and blah blah.

You should definitely just use what you like. If you're going with Debian, maybe go with stable instead of sid. Your games will work. Distros that are being labeled as "gaming" just have some things added for convenience, saving steps after installation. Hopping around is not necessarily a bad thing, either. I've used different ones over the years from different branches. It's good to know how they work. I can pacman. I can apt. I can dnf. I even used to apt-get and yum.

I’m on the same boat. I’ve hopped around a lot (for servers and for desktop). My original post was really to gauge how many people actually use straight Debian for a gaming use case. Apparently, quite a few! So that’s great news.

I don't use Sid, but testing, it's working almost flawlessly. Each release (once every 2 years, I guess), I take few hours to check everything work; remove shader cache, etc.

My setup, right now (dirty, for authenticity) :

 bash

    
$ cat /etc/apt/sources.list
deb https://deb.debian.org/debian/ testing main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing main contrib non-free non-free-firmware

deb https://security.debian.org/debian-security/ testing-security main contrib non-free non-free-firmware
deb-src https://security.debian.org/debian-security/ testing-security main contrib non-free non-free-firmware

# bullseye-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
deb https://deb.debian.org/debian/ testing-updates main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing-updates main contrib non-free non-free-firmware

# add by me
deb https://deb.debian.org/debian/ testing-backports main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing-backports main contrib non-free non-free-firmware

$ cat /etc/apt/sources.list.d/*
deb http://download.opensuse.org/repositories/graphics:/darktable/Debian_Testing/ /
deb [signed-by=/etc/apt/keyrings/lutris.gpg] https://download.opensuse.org/repositories/home:/strycore/Debian_Testing/ ./
# Uncomment these lines to try the beta version of the Steam launcher
#deb [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ beta steam
#deb-src [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ beta steam
deb [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam 
deb-src [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam 

# Uncomment these lines to try the beta version of the Steam launcher
# deb [arch=amd64,i386] https://repo.steampowered.com/steam/ beta steam 
# deb-src [arch=amd64,i386] https://repo.steampowered.com/steam/ beta steam 


deb [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
deb-src [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
deb [ signed-by=/usr/share/keyrings/vscodium-archive-keyring.gpg ] https://download.vscodium.com/debs/ vscodium main

I play a lot, we just played Grounded with friend yesterday.

Hope this helps.

Instead of relying on testing directly, consider using named releases (in this case, trixie for testing). Then stay on the official release for a couple months as testing stabilizes and then go to the next testing release.
I did that in the past and it worked really well. Testing gets a lot of churn right after a release as packages get rapidly upgraded, so I find it's usually better to wait a bit.
When you say “check everything works” what do you mean?
- Testing goes stabler and stabler with time. Then testing move to release and the previous untesting (sid) move to testing. It's a that moment that you can have surprise. This is the moment where I often wait one month or two, apply the updates and check my os is working as before, meaning running my day to day applications and game and see if things work. The only problem I had once was shader cache. I removed few things in .cache and I was good.

No idea if it works, but debian stable as base and distrobox for the games?

ive gamed on just about every distro i've tried but i currently run debian sid its fine, linux is linux for the most part. kernel is recent enough so youre not gonna have to do any workarounds or anything.

Most of the time it isn't about the kernel what is causing gaming problems it is most of the time other packages. I had problems with a few games on KDE neon what uses a ubuntu lts system as its base
- I really wish they would switch to arch it would probably be my favorite distro if they did that.

I've been using Trixie (Current testing, next stable) for gaming for a couple weeks. Everything (gaming wise) works the same as it did when I was on Arch.

The only Trixie relate software I have was Wine staging as I couldn’t find “Sid” specific instructions. The documentation said unstable so I just assumed the Trixie instructions were also applicable to Sid.

I am on a laptop, and it works fine.

I'm using debian because it's the distro I work with, so I'm the most comfortable with it.

Probably not what you're looking for but Nobara is great.

That’s what I was running before switching away due to RH changes. Solid setup, would certainly recommend. It’s just a matter of principles for me but otherwise I’ve would’ve run Nobara until it died.

I'm as new on Linux as one can get. Installed Nobara a week ago on my laptop. Steam Deck got me to wanna try Linux on my PCs. Claims to install a lot of what I would need in its package. Seems to work so far. Not based on Debian tho.

I was running Nobara and had a rock solid setup. My problem was more related to the upstream changes by RedHat. Haven’t tried SteamOS
- What are those? Just trying to dip my toes and understand small bits and taking it slow. Thanks in advance.

I don't know why so many are talking about Debian with distrobox I'm currently testing with bedrock Linux with a hijacked nobara for gaming and GNOME things. I also fetched a arch strata for anything else like window compositor waybar librewolf etc

I’m gonna be real with you. I have never heard of half the things you mentioned (bedrock Linux, strata, compositor, etc) hahahahahahaha