I am trying to enable two factor authenticator and from the forums I saw that there was support for Google Authenticator, but this options is missing from the list. There is only TOTP and Authy.
Did you drop the support or is something missing from my system?
Nothing is missing from your system, this has been made a bit agnostic in the past two or three versions of Virtualmin. As @Steini said, you can still use the Google Authenticator app if you prefer it over the other options which are now available.
I just try the two factor authentication and it works as expected if I enter the code manually, but the qr image is not displaying. What can I do about that?
Agreed! I have reviewed their privacy policy, and it seems quite solid. I have made a change for the next Webmin release to use it as a fallback solution.