There's still room for improvement, but Linux gaming has come a long way in a short time.
I remember when Proton launched it was like magic playing games like Doom and Nier Automata straight from the Linux Steam client with excellent performance. I do not miss the days of having the Windows version of Steam installed separately.
Honestly, I’m considering risking the jump to something like Pop OS. If my games ran well on Linux, I probably would have no reason to stay on windows outside of for my work computers.
I daily Pop OS, it's overall pretty good. Drivers are super easy to deal with, and the Pop Shop has a lot of game-related apps ready to install. Biggest headache is that sometimes my Mic just won't work and I have to reboot. That, and steam does Vulkan Shader Compilation on every game launch it seems, which can be a pain