Install mate-core by entering the following commands in the terminal:
sudo apt update sudo apt install mate-core
Description:
MATE Desktop Environment (essential components, dummy package)
The MATE Desktop Environment is the continuation of GNOME 2. It provides an intuitive and attractive desktop environment using traditional metaphors for Linux and other Unix-like operating systems. . MATE is under active development to add support for new technologies while preserving a traditional desktop experience. . This package (mate-core) is a dummy package and can be safely removed.
Homepage: http://www.mate-desktop.org/
Version: 1.20.0+4
Section: universe/x11