Is that last 10% all about DRM and anti-cheat?
Probably… with many cases of “we could support Linux without any problem but we don’t do because we just don’t want to” included.
Game devs don’t need to do much, or anything. Proton, wine, DXVK ecosystem supports almost everything out of the box.
That’s my point. It would often just run so they go out of their way to not support Linux.
If they run fine, then what is the problem?
I’ve seen native linux ports of games that ran worse than the win/proton version.
tbf, data shows that less than 60% valve games release this year runs on linux with no issue and 30% runs with major or minor issues. This stat is stables for years, so we could generalize it; however it do not represents actual gamers experience; very few games represent the majority of gametime, and a lot of them do not run on linux.
Moreover, when the hardware hardly meet the requirements, some people experience crash on linux where stable on windows.



