I just got this popup today too, but only in Brave, it doesn’t show up in Firefox and LibreWolf at all and I use uBlock Origin for all of them. Looks like it’s just a Chromium thing. I mainly use Firefox anyway, I only use Brave as a music player at work because I have too many FF tabs opened in 3 windows already.

Firefox+UBO and Revanced users: Oh no… anyway…