I use Secureblue which uses the Fedora-packaged Chromium. It has pretty fast updates and bundled SELinux rules, which is always important.
Secureblue now uses a policy to block a lot of surface Google stuff, but I can imagine how that doesnt cover the tight Google Integration everywhere...
Fedora fixed Firefox so now it accepts using a different memory allocator, in this case hardened_malloc (from GrapheneOS). So I will be able to use Firefox again! (Before it just crashed)
Chromium is not even nice. Tab groups are cool, and the compact interface and CSD decorations with hitbox in the very edge. But the rest is just copied Firefox.
Brave breaks Sites randomly and is full of bloat. Compiling it without all those modules may be an option but if we want a good, fast, memory safe Browser with an independent Addon store... there needs to come something else.