[keycloak-user] MS Authenticator and Duo also work for TOTP

I scanned the OTP code presented by Keycloak using Google Authenticator, Microsoft Authenticator, FreeOTP, and Duo, and they all produce the same 6-digit TOTP for the same time-frames. Is there some reason the Keycloak docs only say to use Google Authenticator or FreeOTP? Thanks! Regards, Peter K. Boucher