[pluralmonad]

The difference between physical and software controls is pretty straightforward. (Closed source) software controls are just asking politely. Physical controls are making it so.

[pibaker]

If your threat model includes airplane mode not working as intended, you probably shouldn't carry a phone at all.

[devsda]

May be but corporate greed for data surveillance occasionally surpasses the needs of state actors so much that they'll voluntarily invent features on the same level.

Google/Apple can in the future announce a "safety" feature that periodically announce Airtag'ish Bluetooth beacons even when in Airplane or powered off mode.

[pluralmonad]

Comes down to the model of trust as much as any threat model. I don't need to perceive or even conceive of a specific threat to want to safeguard my privacy, even aggressively if I so desire.

[hedora]

If the threat model includes surveillance capitalism, then the faraday cage is actually a pretty reasonable counter measure.

It blocks nfc, bluetooth and wifi. The last time I checked, airplane mode left those on, and so did the toplevel “turn this radio off” buttons in iOS.