MFA using google Authenticator only??
you just support Google authenticator.
No Microsoft authenticator or Authy?
Surprise to see you have added authenticator called Okta, never heard of fit.
Why options are so limited for MFA??
We support the Google Authenticator spec, which means you can use Authy, 1Password, Lastpass etc anything which supports it. Okta Verify supports Push based MFA, its quiet handy!