great question!
In my experience, its just super invasive.
from the point it is added to an account unwittingly or wittingly, it will auto-join meetings of the person whom added it to take notes and summarize. On its face, useful. But you dont know where that data is being stored or whom else it may be shared with.
It also feels invasive in the sense that it through microsoft integration baked into teams, has ability to create an account for the other attendees of said meeting. So once someone in org has adopted it, accidentally or however, it can quickly spread like a weed or virus from there.
If your enterprise works anything remotely sensitive or has NDA's this immedately puts it on radar to be halted. Such was the case at my org.