[skybrian]

That's a good point, but on the other hand, this "lock in" doesn't seem worse from how Chrome generates and saves passwords now?

It would be ideal to set up backup auth before you need it, but you could also do it when you decide to move off Google.

So, not really a lock. It's a vulnerability, though, if you lose access to the Google account for some reason.

[throwaway41597]

Chrome allows you to export saved password in CSV (chrome://settings/passwords) So I'd say it is a regression in this regard. You won't be able to switch to an other browser easily, you'll have to go to each websites and change/add authentication methods as far as I know.