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.
I don’t see the issue with testing it using fixed hardware, they made that clear in the article.
I’m not defending some random OS, the facts presented speak for themselves. Stop projecting.
Top comment in that chain explain exactly what the issue is.