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 think FPS was actually selected, not frametimes. 1% low frametimes of 89 does not make sense.
There is an issue with the image in the article, but not the one that you might think it was. The FPS should have been more clearly indicated that it was the selected tab and then it probably would have been fine.
edit: I went to the base website https://www.computerbase.de/2023-12/welche-linux-distribution-zum-spielen/2/ it’s in German, but, it seems like the frametimes and frame rates are nearly the exact same values - which doesn’t even seem to make sense to me?