I’ve ordered myself some parts to build a PC for Linux gaming. In the meantime, i’m deciding on which linux distro to use.
For the desktop environment I typically use KDE.
I have used Ubuntu in the past but i’m ruling it out because of snaps and other such annoyances. This also applies to Ubuntu based distros that use the same repos (KDE Neon etc).
I see the wikis recommend Nobara, but I’m reluctant to use a Fedora based distro because I’m so used to Debian/apt (both as a desktop and server distros). I’m not ruling it out completely though.
Any reason why I shouldn’t just go with Debian + KDE and install Steam? Will I be missing out on lots of performance improvements or is this easily addressed by using an additional repo for a tweaked kernel and proton version or whatever?
No reason to avoid Debian unless you have hardware so very new that it requires the very latest kernel to operate.
If you go with Debian Stable, you can enable Backports for a fairly recent kernel, currently 6.5.10. You could go with Testing or even Unstable if you’re addicted to upgrading as often as possible, but chances are you won’t need to.
I’m gaming on Debian Stable with Steam in a flatpak. It works great, and is blissfully low maintenance.
At some point, you’ll probably run into people claiming that Debian is bad for gaming performance because of “outdated” packages. In most cases, those people don’t know what they’re talking about. I suggest ignoring them unless they identify a specific performance issue that actually affects you.
Technically it is possible that outdated packages can decrease your performance. Some games may not work because of outdated libraries, but in most cases you should be fine.