Is it a good enough solution for IMEI tracking to use an alternative device to provide a hotspot connection?
This approach appears to protect any new device that hasn’t inserted a SIM card from being identified.
But I’m not sure how much information is carried to the second device by using hotspot.
Is this a good solution so far? Should I try to spoof IMEI?
Spoofing IMEI isn’t helping if OP pays for the service with bank account / credit card, or walks in a store to pay but with face exposed, or turns on the cell-hotspot device on at home (because they’ll be able to associate the SIM/Service-Plan with your address via cellular triangulation, and thus your identity)