Did you know your IoT devices don't just fingerprint, but can be used to map a room and the location of the people inside it via Bluetooth, NFC, and WiFi signals? I have a hardware firewall and multiple rules on my home network, and I know what I'm doing.

If you are ever in the proximity of a place or persons who uses a device with a live mic (most people), then your voice and its proximity to your device has been fingerprinted/recorded, the same way that your car tag and the unique IDs of your devices and the RFID chips in your pet etc. can be uniquely fingerprinted with new police tech even while you are driving your car or parked in a parking lot with a scanner (most major parking lots).

My second (more locked-down) mobile device never connects to my home network, stays in a Faraday bag with the signals off, and is turned on and off at the same random location at least 5 miles from my home.

My bug out devices are even more locked down.

I write, and have written, much about privacy through isolation and compartmentalization. It is not IF you are being tracked and spied on; it is being aware of what data you are providing when, and where, you are.