Apart from the warrantless video surveillance it is even more insidious than that. Read up on Amazon Sidewalk. Amazon is trying to grow its Bluetooth Low Energy (BLE) mesh network. The exact details of how it works are of course proprietary and black box. But what we do know is it can amount to a side network that isn't transparent to the actual owner of the device, nor can you manage or block any of the traffic at your router (its a discrete network). You can opt your devices out manually, which I would recommend doing if you actually use any Ring or Echo products.