For myself, though, not being a big fan of FPS/RTS games, basically anything I play is fine as long as it’s around 30 and most of it is 10+ years old and/or indie game… I’m pretty much in the phase when if the game does not work on my OS (which is barely the case), the game has to go.
It’s rarely the case for me though, last time I really did that was like 7 years ago with Doom 3: I haven’t realized that it’s Windows-only so I ended up asking for money back on Steam. Nowadays, with Steam Deck & Proton it’s not a problem; I actually got Doom 3 on Steam again, and I can play it just fine. (Well, “fine” with the exception that the monsters are scary so I’m scared, but the game is fine!)
I’m not posting this to feel smug, cos I’m not. It’s 100% legit to want your games to look and feel awesome, you deserve that.
I’m posting it just as a flag, that for people with far less demanding taste, Linux is just fine. I can’t think of a game right now that I would want to play so much that I would be willing to install Windows.