My private key is 4

From the GOS forums, it looks like as long as you keep your phone up-to-date, block USB data in the locked state, and the phone is in the before-first-unlock state, cellbrite still can’t break into it

Safety concerns aside, you should trust your partner enough to not need to track them

The tracking happens even with a big reflector/scatterer on your head, but as long as you dont wear it regularly, the system would have difficulty identifying you from wave propagation alone

Ironically, a tin foil hat would probably work to prevent that kind of surveillance