of course you can make the hardline FOSS argument but compared to say, the phone OS market Windows is actually remarkably open, in particular given how dominant it is and especially was.

Imagine if Windows had charged every developer who ever built anything on windows 30% of their revenue. They got almost bludgeoned to death for shipping a default browser 20 years ago.

Windows deserves a lot of criticism but we take it for granted that a monopolist basically just sold an operating system and let everyone run and build whatever they wanted on top of it, we could've been fucked way worse.