To be clear, you're stating that the Librem 5 and Pinephone, with their hardware kill-switches that prevent current getting to the GPS, modem, cameras, BT & wifi radios, and microphone, will still be able to determine where it's been when power is restored to the above radios?

Because I'd like even a pie-in-the-sky hypothetical for how exactly this would work. Keep in mind, there is no inertial navigation in these devices; no pedometer, no low-power fitness tracking, nothing else.

I'm not sayinmg I know it's impossible, but I'm deeply curious how in the world you can make this assertion in good faith, or with any credibility.