I just read the whole thread and my opinion is similar to others, especially Jonah’s points and also this one: Revise statements on Gecko browsers (Android) to make security shortcomings clear - #54 by ddsn
There is one thing I don’t understand, probably because of my lack of knowledge. If I understood correctly, using uBO hardmode increases my fingerprinting (stand out and attack surface). Why using Brave and changing all sorts of settings wouldn’t, then?