IDK why you waste time explaining these kind of things to these kind of people mate, I mean someone who define that as a "big crypto scam" doesn't even know what's a big crypto scam.
I have years using it and I have never been crypto scammed for it, about the V3 I truly don't know apparently you will still be able to turn on some V2 extensions like ublock origin but I didn't see the point of it if the browser include a good adblocker anyway.
Debian