Assigned groups not shown for federated users

Summary

Assigned groups not shown for federated users

Content

Hello experts,

                        In my users console I can see two users with same name like below

1. oracleidentitycloudservice/emili-d (This shows as federated)

2. emaili-d (This is non-federated)

Until today I did not realize that I was using federated user login but I have below question.

1. What kind of federation is happening here because I choose identitycloudservice and setting up my own account and password.Does that mean If I have already an account with oracle it will try to use same username and password? If that is true then changing password from myoraclesupport will be automtically handled by OCI or I need to use same old password?