> Besides, the gaming industry keeps shooting themselves in the foot by only supporting Windows (Mac is a thing too). That is slowly changing, but so many game devs are drinking the Microsoft koolaid they don't even consider using another graphics API other than DirectX. Many other decisions like that as well.

If you think game devs are drinking koolaid, do note that there's always loud minority of linux advocates on forums like these, saying 'it works' and when expanding further it turns out they had to do a ton of tweaking and setup. Just look at the comments on getting Overwatch2 to work on linux for an example.

Fact of the matter is most of the game dev's audience is on windows, and for a time it had good tools/documentation for graphics debugging as well. That momentum carried over. It made practical sense to have main development be on windows.