Currently Plasma Network Management is tightly coupled to NetworkManager as the only supported backend. This makes it impossible to use Plasma’s network UI when the actual network configuration is handled by other solutions, such as systemd-networkd + iwd (which i prefer).
Because of plasma on local setup i cant use systemd-networkd for setuping everything because ui tools not see setup of networkd. This is possible to add alternative backend or at least make something like “Observer/controller-only” mode for NetworkManager so i can use all ui features like change connection, but all system setup will be on networkd