I would be surprised if Starlink needed the handshake in order to locate a phone, I get the concern, and certainly an opt out would lower your attack surface, b

I would be surprised if Starlink needed the handshake in order to locate a phone, I get the concern, and certainly an opt out would lower your attack surface, but I'm pretty sure if you can establish a bidirectional link with a satellite the satellite can hear your phone asking for the nearest cell tower (or whatever it's doing, I'm sure the IMEI is up there in the noise and you can pick it out if you have good ears) I'm only thinking about this from a first principles modulated EM radiation perspective though, eager to have someone point out why I'm wrong.