I use debian to game on a rather recent AMD desktop PC. It just works.

For using my gpu to the max, I installed the AMD rock stuff, I think that's some kind of gpu driver stuff. Helps me get most out of the gpu but it works just fine for games without that too. Steam games just work with proton or native, native games just work.

I even timed it well, last October when I thought memory was super expensive and didn't know how bad it would get, and with the new gpu architecture.

Debian just works. Debian is good.