Google password manager is not end to end encrypted.

LastPass, Bitwarden, and Firefox too, are end to end encrypted with the user chosen password at least. If your password is strong enough, it should be safe.

Apple also uses end to end encryption, although there you might also be vulnerable via a hack of your iCloud account, not sure.

1Password is the most secure option: here, in addition to your password being encrypted with your master password, it's also encrypted via a secret key that is pre-generated. So a leaked encrypted 1Password backup won't be brute-forceable.