If you're using KDE Plasma on Fedora Linux and you've noticed that the Bluetooth button is missing, don't worry. Here's a simple fix.
Make sure the following Fedora packages are installed:
sudo dnf install pulseaudio-module-bluetooth bluedevil
This command installs the `pulseaudio-module-bluetooth` and `bluedevil` packages, which are necessary for Bluetooth functionality in KDE Plasma on Fedora Linux.
After installing these packages, you should see the Bluetooth button in your system settings. If it's still not there, try rebooting your system.