Funny the different experiences we have. I switched from FF to Brave only on mobile because FF mobile doesn't correctly interface to Android clipboard for scrolling screenshots. (I think that's because they assume everyone uses Samsung, which brings its own, but I'm on real Android and loving the experience over Samsung's bloaty mc bloatface experience.)

That was only one feature that I rarely use, but, once I tried to switch back to FF on mobile, I realized some other problems came back to me and were only happening on FF. Perhaps it's one of my plugins, but every other scroll-up motion is ignored. The only reason I have plugins is to give me dark mode on accessibility-challenged sites, and that ability to do that with plugins was initially FF mobile's edge over others, but dark mode is natively built into Brave.

I still prefer FF on desktop, and I want it to win on mobile, especially for its reading mode that I don't think any other browser comes close to implementing.