How do you make e2e password management work on multiple devices as convenient as not? You cannot.

Most people who use Google trust them. And if you do not trust them then why are you using their password manager? You see? Hence why they do not bother.

Of course one might read this and say, multi device e2ee is possible! Sure, but can you allow for recovery when people inevitably lose their recovery codes at scale? If you really care about this it is not necessary to go with Google.

I stand by my original comment:

The average user does not want it.