If you're running Fedora Linux without any desktop environment it's probably
good to take a look at
powertop from time to time. Normally I would have GNOME
or KDE manage Bluetooth for me, but as I'm currently experimenting with Sway,
started straight from a tty, I have to manage services myself.
Good thing I checked, as the Bluetooth adapter was eating a whole Watt, while essentially doing nothing but sending some useless beacons.
To disable the Bluetooth adapter right from the get go, check the config file in
grep AutoEnable /etc/bluetooth/main.conf # AutoEnable defines option to enable all controllers when they are found. AutoEnable=false