Phone is sharing sounds with another phone. I have a 2020 SE and my wife has a iPhone eight. For some reason if I change a ringtone related to a contact it will change it in her phone I don’t know why. We have separate iCloud accounts set up with different email addresses. It only changes the ringtone associated withContacts that we have in common but and sometimes it has even changed the sound associated with a text. We have different contacts in our lists and it doesn’t try to sync those only ringtones and sounds. It’s weird because we don’t have the same iCloud account maybe someone could help