I’ve used Arch, Pop_OS for gaming in the past, was looking for a distro that just works and doesn’t have any extra fluff or do anything nonstandard. (For example I don’t like that some programs will only update through the pop shop on pop os and not through the terminal.)
All you do is install your drivers if using Nvidia, then just install your games, whether native packages, flatpak, Steam, Lutris, or whatever.
I just run Debian 12 and everything through Lutris or native. Used to run Steam through Flatpak which also worked perfectly, but don't play any games on Steam anymore.
There's not a "best" distro for gaming, it very much depends on what games you play.
If you want to play latest releases, a rolling release is most probably the best option for you, I hear Suse Tumbleweed is very good if you don't like Arch.
If you want less "aggressive" updates but not exactly a stable, you can try Solus, it's a sort of middle-ground between the 2.
If your games are not the latest ones, a Debian-based distro is a very good option, rock-solid, updated enough and without any "extra fluff".
I personally use Linux MX XFCE and I'm very happy about it.
With Mesa compatible GPUs it's objectively better to get Mesa updates ASAP and not wait for 6 or so months. The constant feature and performance improvements are especially crucial for gaming.
OP may want to look at Garuda's gaming edition. It seems to have a lot of good gaming packages I usually end up installing myself and it's based in Arch Linux
I'm running Arch with dual Nvidia cards. It's nice to have a distro that actually updates it's Nvidia driver on a regular basis without having to manually do it and breaking things. Any rolling release should work just fine.
Technically correct, but the new version is so much better. It leaves the old one in the dust. I wish they'd make an official release for PC, though. I'd like to try it out.