The package "plasma5-session" has a hard dependency on "plasma-nm5" (Requires: 
plasma-nm5). 

"plasma-nm5" requires "NetworkManager"

NetworkManager is deeply undesireable in a managed environment. Deinstalling
NetworkManager results in a complete deinstall of KDE in this case due to the
dependency.

Please demote the dependency from "Requires" to "Recommends", so NetworkManager
can be deinstalled in a managed environment.

With this change NetworkManager would still be installed in a normal setup but
would be removable in a managed network environment.

Thank you for your help.