Authenticator won’t need to be set up separately when you configure a new phone and log in to your account.
Cloud synchronization has become quite popular in other two-factor efforts like Authy, Google took a very long time to add it to Authenticator.
You must upgrade the Authenticator app for Android and iOS to the most recent version in order to enable cloud syncing for two-factor codes.
If you’re signed into your Google Account within Google Authenticator, your codes will automatically be backed up and restored on any new device you use.
One-time codes will be stored safely in users’ Google accounts.
This change means users are better protected from the lockout and that services can rely on users retaining access.
One-time passcode cloud syncing may make it much more alluring for bad actors to attack Google accounts.