I think this is related to the way the Apple links different Apple devices? If I change my apple password, or if I have a new device, I need to enter my phone p

I think this is related to the way the Apple links different Apple devices? If I change my apple password, or if I have a new device, I need to enter my phone passcode on that new device to properly link them. Maybe the apple support app uses a similar mechanism to disable find my?