This is a myth and has been for several years. The only games that do not work with linux are ones that have intentionally artificially disallowed the use of linux using kernel level anticheat (rootkit). Many of these games worked on linux until adding no-linux policies to their anticheat.
There is no technical incompatibility, only artificial policy choices that game companies have made
prole@lemmy.blahaj.zone 21 hours ago
Unless we’re talking about the handful of kernel-level anti-cheat games where the devs have refused to allow Linux support through Proton, nearly every game you own will work. Most of them without any tinkering whatsoever.