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.
Yap, ProtonDB give us a good picture, mostly games still have minor issues. But, I like this kind of thing because show potential. If gamedev do they homework, the Linux experience could be better performance.