If a user chooses to install Bluetooth from
<!-- User desired features --> ...
then Bluetooth management, available by default, differs from DE to DE.
Plasma has native tools to configure and work with it. Mate includes very handy and easy to use blueman manager.
I simply propose to add blueman package for Gnome and Cinnamon installations in the
<feature name="bluetooth"> ...
section of the packages.xml file. GTK+ Bluetooth Manager will be installed by default, allowing a user to easily configure and manage Bluetooth in Gnome and Cinnamon.