I've been running Iceraven for a while, which is just Firefox for Android with more addons enabled and some other annoyances fixed. I'll probably switch back to the official Firefox after this ships.
I also use Iceraven and Mull as well. Both have served me great over the years. They're much better than Vanadium that comes by default with GrapheneOS.
Too late to edit, but it looks like I'll be sticking with Iceraven for a while longer after all, as over half of my current addons are not on the offical allowed list.