Even if that's true it doesn't invalidate the 10% market share, I doubt that all 57% of Windows machines are actual users.

This is where I stopped reading. We’re looking at OS X, which was replaced by macOS in 2016, at 21.14%, while macOS itself sits at 8.6%.

Statcounter says on their market share page for macOS that they can't really reliably show usage stats for anything past 10.15, due to a bug in Apple WebKit. The actual market share of macOS is very likely much higher.

Granted, Windows 11 is not a perfect OS

You don't say...