I'm sticking with Firefox until some dev decides to use it's engine to make a new better browser. I truly enjoy Arc and Vivaldi, but since they're chromium i don't trust them an inch with my personal data.
LibreWolf is an option. It's mainly just a Firefox fork but removes the adware and sponsored garbage as well as had more privacy-focused defaults, though IMO the defaults are too much and need to be toned back. No ads though so it's 100% worth the switch.