For me the highest stopper is that it does not really work with Google Meet and it is not clear if it is a Webkit bug or not. Apart from that, I could probably use it as a daily driver.
It does sound like a feature, not a bug though...
Edit to add that the suggestion of using Orion for everyday browsing and FF or Chrome/EDge for Google Meet is totally reasonable, but somehow I find quite a lot of friction doing that.
At this point I keep a chromium based browser around as my google apps portal, and nothing else.
I use meet as seldom as possible (basically just when a client, partner org etc sets up a call) but it still adds up to at least 2 or 3 a week at minimum. I wasn't interested in those feature popups the first time I'm definitely not interested now after you've been showing them to me 2 or 3 times a week for the last year or so. There doesn't seem any way to make it stop though.