I've been using the ad and tracker blocking from Mullvad and that works OK. Not as good as uBlock Origin on Android Firefox or Mull or whatever, which can clean up the white space, but it's servicable.
I think the main thing I'm missing is dark mode support. Having most of my OS be a comfortable dark theme (sure do wish we'd get AMOLED configurable as a theme option in AOSP so I didn't have to set it in every app) but then getting flashbanged whenever I need to use the browser is not great in terms of accessibility.