raises hand I'm in this group. I finally gave up on mobile Firefox a few years back despite being a user and advocate for many years prior to that. The leadership and product decisions at Mozilla are indescribably bad and have done a huge amount of damage to formerly great product. Desktop Firefox still works ok, although it also suffers from too many bad product decisions.

For mobile I use Vivaldi which is not bad. The adblocker isn't as good as uBlock Origin but is mostly good enough, and the builtin dark mode works really well.