Recent testing revealed that Arch Linux, Pop!_OS, and even Nobara Linux, which is maintained by a single developer, all outstripped Windows for the performance crown on Windows-native games. The testing was run at the high-end of quality settings, and Valve's Proton was used to run Windows games on Linux.
Just from that comment we can see how far from mainstream adoption Linux is for gaming… You really need to want to understand how things work to fix things that might not work natively. Not every gamer wants to be super knowledgeable about computers, most just want to play games. Heck, I’m very good with computers and I know that what little time I have to play games I don’t want to spend trying to make them work…