I've been gaming exclusively on Linux since 2014. Gaming on Linux is so good nowadays, thanks to Proton, there are so many amazing titles available to play. Proton makes it all easy - thanks to it, it's just a matter of hitting install and play on Steam (in most cases).
There are so many of them, If something doesn't run on Linux, I just don't care. My backlog of great games is so big, who cares about some singular titles that are not available.
I've recently been playing Baldurs Gate 3, ARMORED CORE VI, Anno 1800 and Battlebit Remastered on my Ubuntu rig. All run great. Neither need any special tweaks (I own them on Steam).
BG3 and Battlebit Remastered are especially stellar.
I recommend BG3 to anyone who likes true roleplaying games with great writing, reactivity and player agency.
Battlebit Remastered is a great multiplayer title with massive 256 player battles and it sits somewhere between Battlefield and Squad (a mixture of arcade and mil-sim elements).
I'm just some meatbag, unfortunately, though I'd happily merge with machine If I could.