I am boycotting brave because of its sizeable amount of controversies and because it is American. I have decided to swap to Vivaldi but I have noticed a significant performance decrease on Speedometer 3.1 Benchmarks. Furthermore, according to EFF Cover my Tracks I now have a unique finger print and am easier to track.
My setup consists of using uBlock Origin (normal not lite) instead of Vivaldi’s built in tracker & ad blocker.
Waterfox has given me zero issues, I use the useragent setting to present as chrome. There is no issue with blocking when this is done in my experience.