I’m currently trying to track in devices (in this case a Samsung Galaxy S21) with Bluetooth.
Unfortunately I can’t do that. It will never be found.
I tested both bluetooth_tracker and bluetooth_le_tracker.
According to the documentation, the prefix “BT_” must be included in Bluetooth. However, I have already tried this with and without BT. Unfortunately, that doesn’t work.
I am using BLE transmitter from companion app with esphome BLE trackers around the rooms. If you just want to use Home Assistant OS BLE, you can also use Bluetooth LE Tracker.