The thing is that people run Windows because they want to run Windows apps. That is, Windows is an important OS not because it is such a great OS in itself but because it has a great selection of software. Same is true for Linux or any other mainstream OS.

Sure, but the thing is that Microsoft has taken multiple swings at "Windows that can only get apps from the Microsoft Store".

Windows S was another attempt.

(Your comment reads to me as having a tone of disagreement, yet you seem to just be providing further evidence of the point: we are confident that this is the case as Microsoft is actively trying -- if failing due to some of the other things you didn't bother to quote about existing expectations -- to gain this kind of control.)