What to Do If Your iOS Device is Asking You to Sign-In To Someone Else’s Apple ID

ok so I am being told that the message popped up and has asked the person

Apple ID Verification

Enter the password for "someone@gmail.com" in settings.

and I believe in the past I have given this individual bunch of songs from iTunes, while I dont believe she is attached to my Apple ID, at least currently.

No Activation Lock was required , I was told that the phone worked later on ( a few minutes or a bit after) without any issues, or asking for the password. I am not sure where in the setting..I was not informed of that.. what could be all the cases....possibly...

When I talked to Apple Customer Support, they told me it was either an App that needs to be deleted or Songs from the iTunes or Possibly when the updates came from major upgrade (such as to OS 13) the phone might asks for the original purchaser of the phone or email associated with it...... Also another things is that I am sure the owner of the phone has a different Apple ID since the Activity Sharing at some point was enabled and that cant work if both individuals are signed in to the same Apple ID account.