I can't imagine how frustrating using that for lessons (so multiple connected parties) would be - it's hard enough to make it work with just two parties. Either the video works and no sound, or sound works but no video. Or just doesn't even connect.
Very unreliable from what I've seen.
Universities are by-and-large, not Microsoft shops.
Teams is picking up from Lync/Skype-for-Business in many Microsoft shops.
I couldn't find any data about Italy. From personal experience in neighbor country Croatia, all universities are Microsoft shops and nobody even knows what Zoom is.
We didn't use any of the Microsoft programs as part of our education (no skype or teams), I think we transitioned from GMail to Outlook Online by the time I graduated