HomePod Spontaneously Pairing with iPhone
I have the opposite problem of most of the posts about pairing an iPhone with HomePod. My wife has an iPhone provided by her employer. It has a different AppleID than her personal phone. This morning, the controls for the HomePod appeared on the Lock Screen and she was able to control the HomePod with her work iPhone.
It was not previously paired with the HomePod, and a visit to the Bluetooth settings reveals no paired devices. None. So, it's not possible to disconnect or forget the HomePod from her work iPhone.
Weird.