Gnome Software Center Xfce. Currently a PackageKit plugin provides data from a number of traditional packaging systems such as rpm or apt. XFCE Is a lightweight DE.
Theres no such thing as Xfce Software Center but if you dont like GNOME Software try Synaptic Package Manager sudo apt install synaptic on DebianUbuntu based distros. It didnt update any other packages. The GNOME Project is a diverse international community which involves hundreds of contributors many of whom are volunteers.
Software lets you install and update applications and system extensions.
Dbus will only run in a user session so root wont have access to it. It didnt update any other packages. Jounal output Aug 19 113831 gnome-software515509. Sudo apt install gnome-software and it needed a restart till it was there.