I'm new to the Emteria party - I have an RPi 3B+, and from my understanding BT doesn't work - but is that BT as a whole, or just the onboard BT?
For my usage, I need BT, but I'm quite happy to just get a BT USB if that's what's needed - so is it BT doesn't work full-stop, or it just doesn't work with the inbuilt BT?