Good call, just be aware that while you can (pretty much) install any DE on any distro. Many distros will have a ready prepared install that may feel quite different to you adding the DE later.
If that's not clear, Ubuntu with cinnamon DE is very different to Mint Cinnamon. Same with Kubuntu (KDE Ubuntu) and KDE Neon (Debian KDE).
All of the differences are of course replicable, they're themes and tools and configs. But for example it took me literally most of a day to get Arch with cinnamon to feel like Mint cinnamon.
You can also boot a live CD. Last time I switched distro I got a bunch of live CDs and picked the one where everything was working out of the box (accessing shares, playing music/video, printing, Bluetooth, hooking up my phone to USB, gaming controller etc.) (Ended up on Manjaro btw.)
Totally. You can typically get CDs at the dollar store these days. I have a few from dealing with older computers now but I also have a sizeable amount of USBs now and several computers.
Oh it's only "CD" in the name, you can boot the image from a USB stick. No need to go out and buy actual CDs.
I wanted to move away from Ubuntu and .deb based desktop distros because they don't do well with long term use.
The way debs work, if you want third party software you have to add repos individually. But each of them tracks dependencies only within their scope. So eventually you end up with combinations of packages that the installer cannot solve anymore and you can't upgrade your main packages. Which results in an reinstall.
I wanted something Arch-based because I heard it takes "rolling distro" seriously and you can keep upgrading and using it indeterminately. And there's a single third party repo (AUR) which only breaks its own packages when the main system is updated, but not the main system. Which seems like a reasonable compromise.
But I wanted a more polished desktop experience so no plain Arch. The candidates were Manjaro, Garuda and Endeavour so that's where the live CD test came in.
Yeah I know I've used them for years but I keep some on hand for older devices.
Fair enough. I used Manjaro for a while, maybe a year, and it kept breaking my system. I've been using EndeavourOS and Fedora ever since and haven't had an issue.