I looked at this thread: Problème Bluetooth sur PC Ubuntu, I did a: apt install bluetooth bluez libbluetooth-dev libudev-dev
and now if I do a: systemctl status bluetooth
it’s fine but hcitool dev shows nothing and the module is still not available and not present in Docker either.
I advise you against doing that, I mentioned it in the thread you saw, phone detection (or a connected device like a Watch) via Bluetooth doesn’t work, manufacturers have put safeguards in place precisely to prevent tracking!