You failed to address OPs arguments, dismissing them as 'horseshit' instead. The following statements are faact, not slander: Microsoft has made it well nigh impossible to disable telemetry in Windows 10. Microsoft has also resorted to pretty underhanded ways to trick people into upgrading to windows 10 (since when did dismissing a window mean the same as clicking on "OK"?)
Commoditizing your complement is not a new concept - open sourcing your complement is just a recent twist. Without passing judgement, I can safely say Google will not open source its search algorithms in the foreseeable future.
I used to work at Microsoft, so take this with a grain of salt, but the company really runs (or at least ran) like a bunch of smaller companies than it did like one giant corporation. There were people in leadership in some verticals that really detested the way other verticals ran. E.g. none of us in the web side of things would touch an architect that came from the Office team.
So it may be possible that the teams releasing OSS have relatively good motives while the people running Windows have relatively misguided ones. Different verticals have different-- possibly conflicting-- aims.
Personally, I think we can encourage the right behaviors and discourage the wrong ones. Use their OSS stuff, don't use their closed source/adware stuff. I don't think I'll be using Windows again (unless something drastic changes), but I do use VSCode, and I'd love to use Visual Studio again, if it ever arrives on Mac/Linux.
MS doesn't have such strong verticals anymore. The end of the consent decree, the "One Microsoft" initiative, and the massive reorg from a couple years ago all went a long way towards breaking down barriers internally.
Windows releases OSS projects as well, it's not only the dev div team that values open development.
Commoditizing your complement is not a new concept - open sourcing your complement is just a recent twist. Without passing judgement, I can safely say Google will not open source its search algorithms in the foreseeable future.