I already have Mull for everyday browsing and stuff, but for PWA Mull seems a bit slower. I do use native alpha for PWA but Voyager which is a lemmy web client doesn't work well in native alpha.
Maybe check outCromite, a bromite fork that's updated still.
I use mull for regular browsing, but anything important, and by default, I use Vanadium (grapheneos only). At least until firefox gets site isolation on mobile