Games don’t always run perfectly under Windows on release either.
I specifically remember one of the CoD games running just long enough to use up all my vram, whereby it would promotly crash. Took about about two weeks to sort that one out.
My tinkering under Linux consists of downloading a game under Steam, ticking a compatibility checkbox, and playing the game. For other launchers, I simply open Bottles and install the launcher of my choosing. Been playing Diablo 4 under Battle.net just fine since launch.
It blows my mind just how bad file system performance is under Windows compared to Linux. I mean, you literally have to have an SSD in order for the OS to be responsive. Granted, most have SSD’s these days, but performance on spinning rust shouldn’t be that bad.