When login into the iOS (iPad) RD client, the password for the MS account needs to be filled in manually. Password managers (Apple keychain or 1Password) don’t have access to fill in the password.
It would much easier if the RD client would allow login to the cloud PC with the username and password that are already filled in at “Settings - User accounts”. To verify, iOS biometrics (FaceID, TouchID) could be used.
Thanks.