I've played on Ubuntu / POP_OS! and I've played on Arch, I haven't tried other distros, but anyone else who has Linux and Steam has shared a similar experience with me.
I play all the Bethesda RPG games (TES, Fallout, and now Starfield) I even play online games with friends. Proton does a fantastic job, I think Rust, which I don't play anyway is one game you can't play on Linux due to them not adding support, which its not even an immense effort to support Linux with Proton, you include a DLL if I'm not mistaken.
I've played CyberPunk and other key games as well. Some games on launch are iffy, but after a few updates, they work flawlessly. Like Starfield was almost non-functional on Linux for me, then after a few updates it played flawlessly.