wouldn't you expect though; if the experience got so bad, that you'd have a sort of 'hard-fork' like we see happening all the time in the crypto space; with devs moving to whatever platform is best? That would have just been nigh impossible with close sourced software; at least there's a potential path should we ever have to confront that situation with chromium.

Practically, I wouldn't guess that we'd see that, since chromium ends up being the closest implementation to true web standards; well, since they define the standards practically, anyways.