One thing I've noticed is that sticky divs of most kinds (e.g. the bar at the bottom of Twitter.com, sidebars on news sites, etc.) horrendously crush the perfor

One thing I've noticed is that sticky divs of most kinds (e.g. the bar at the bottom of Twitter.com, sidebars on news sites, etc.) horrendously crush the performance. But if you kill them, by zapping with ublock or using another extension or bookmarklet, the performance is instantly a lot closer to something like the Chrome or Brave apps It has been like this since Fenix launched, so at this point it makes me need to assume that it's some sort of fundamental limitation of their architecture. It is rather unfortunate.