Oof, you chose the wrong place to ask that question ;) Or maybe the right place.

I won't pile on to the endless list of examples you asked for, but I'd like to say that this statement:

My experience is that someone books an online meeting, i get a teams link. When the meeting comes I click the link, everyeone's face shows up, we have the meeting and then close teams.

made me sceptical of your motives here. This has never been the case for me, or anyone I know. The first thing we do now when we get an external MS Teams meeting link is request an alternative like Google Meet.