I don't even trust the "only give permission to use [camera/mic/bluetooth/location] while the app is active" setting.

I would not enter a public space with my phone lit up like a EM Christmas tree, sonar pinging every receiver in sight.

Let alone giving some rando app the access to every piece of NFC/radio comms on the off chance it can positively identify someone's spy glasses, because that means if they are, ive just given their spy glasses my phone's identifiers, and I'm spending more time near them and more time to possibly end up on some shady company's panopticon server.

It's like the people suggesting shining a laser into a flock camera, it might destroy a bit of the sensor, but they've also put a highly visible beam of light directly from themselves to it.