My Apple ID is connected to an ex's account and I can't unchain them.
Several years ago, I had a shared phone plan with my ex. After we broke up, I change my user picture on my Mac and iPad and their photo changes on their phone. I try to set my user photo as my initials on a brand new Macbook and it shows their initials. We are no longer linked on any accounts, never had a shared family plan, and don't live in the same state. What can I do to break this connection, ideally without contacting them?
MacBook Pro (M3 Pro, 2023)