I have had plenty of issue with Zoom. Quality being bad, people not understanding the interface and my university had people zoom-bombing or whatever it is called. I recently accidently logged into a session with the wrong credentials (whatever Zoom defaulted to, not my official uni login) and everyone thought I was zoom-bombing them. I couldn't understand why I was being cross-questioned by people in the session.

Unfortunately the media have pushed zoom so hard that everyone assumes it is the best option and don't want to hear of anything else.