I decided to check this out and scared myself for a second. I opened the development features on my android, turned on the Bluetooth scanning as MAC addresses, did a scan and found a LE device nearby. I did this at my house in the woods. I'm unvaxxed, so I was wondering what it might be, since there was no other devices I thought of right away. I checked the MAC address in the MAC adress search engine, which came back as unknown. This left me wondering if I'd been chipped during my time in the military for a second. Lol. Long story short, it was my truck Key FOB. I set it down, walked about 50ft away and it disappeared with nothing else coming up on a new BT scan. Now consider how many people may have their keys in their pocket if you were to try this at a busy location. I'm not saying there isn't anything to this, but definitely don't get sucked down a non existent rabbit hole conducting research without ruling out variables.