Install kubuntu-desktop by entering the following commands in the terminal:
sudo apt update sudo apt install kubuntu-desktop
Description:
Kubuntu Plasma Desktop/Netbook system
This package depends on all of the packages in the Kubuntu desktop system. Installing this package will include the default Kubuntu Plasma Desktop or Netbook installation. . It is safe to remove this package if some of the desktop system packages are not desired.
Version: 1.370
Section: universe/metapackages