Linux isn't there yet, not by a long shot, and no education authority worth their salt is going to take the risk of being the first to experiment with their student's wellbeing, let alone curriculum, for effectively - in their eyes - zero benefit.
This is the crux of your ramble and it's nonsense.
The reason orgs use these tools is productivity, not the well-being of the students. To conflate the two is to admit you're a lackey of capitalism.
If the orgs cared about student well-being, they wouldn't be training them on proprietary systems and letting corpos harvest their data. Period.