We are talking about the literal window to the digital world, with potentially billions of users. Its a dysfunctional world that cant sort out funding for such a super-critical software piece and has let adtech have this charade and fig leaf of "browser competition" going on for so long.
A chromium based solution would double down on the monoculture. If anything now is the time to envision what a users-first browser should be like, not what adtech wants it to be. From wasm to fediverse and (dare I say) AI, its a good time to snap out of the stagnation.