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Windows 11 scores dead last in gaming performance tests against 3 Linux gaming distros
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
1 % lows are likely a driver thing (Nvidia calls it "Game Ready Drivers"), with Arch you'll get new drivers (or kernel versions) much earlier, similar to Windows.
... Then why did they get the results that they did in the article?
The article specifies arch as an exception to that