Google Authenticator uses a standard protocol for 2FA. Neither the server nor the client needs to communicate with Google for Google Authenticator to work. This will definitely be supported in the new forum. (And maybe also added to the current forum.)
Thanks for notifying about adding the option. Adding to the current forum will be better as the new forum will take some months. Making 2FA a must for all would be better from hacking a but adding option would be helpful for persons who don't have android or iOS.
Kindly,
MZ