Google Authentificator issue
Just my 2 cents, on the 2FA registration page I wish there should be tools other than Google Authenticator listed. Not only tools for other platform (e.g. Plasma Mobile - do we have one? Sailfish, iOS, ...) but also F/OSS in Android. At least there is Aegis [1] on F-Droid which seems to be an actively developed free replacement of Google Authenticator.
[1] https://f-droid.org/en/packages/com.beemdevelopment.aegis/