Thanks to valve/proton, the biggest issue for playing on linux nowadays is the kernel level anti-cheat they force on some competitive games.

Other than that most of the games just work, especially if they were made in a common engine (godot, unity, ue, …)

The only AAA I play are Nintendo ones (and RTS/MOBA since its a niche genre and you need a community for PvP). Since quite some times already. But I only look out for indies, I love getting new experiences and gameplay.

And even when the gameplay is not new, the attention to details (gameplay wise) is at 1000% only on indies (Celeste, Hollow knight, Factorio, …)