We all complain but in the end the result is the same. The majority of PC gamers will stay on windows for 2 reasons:
1. Retro game compatibility
2. Online multiplayer anti cheat
There are old game mods or patches that are no longer in development but still fairly popularly among their respective communities in online multiplayer circles. They were designed and mostly tested for windows. They likely do run on linux but you may run into unexpected behaviour, additional bugs or crashes due to lack of testing.
Then there's the obvious more modern online multiplayer games with their kernel anti cheats that break Linux compatibility and cause issues.
If there was some kind of universal compatibility layer like proton but for online multiplayer servers and anticheat that could solve this, I think people would switch in a heartbeat, at least I would.
If you only game offline, on single player, idk what you're doing still on windows. Same if you don't game at all.
Waiting for A to respond to this Linux thread. =P