We should install network-manager-applet on XFCE/MATE profiles if it's NetworkManger is chosen for networking · Issue #1222 · archlinux/archinstall · GitHub
How To Install MATE GUI In Debian 9 Linux - RootUsers
Problems installing the Mate desktop - Ask Fedora
NetworkManager 1.22.4 (Linux) - Download & Review
NetworkManager 1.22.4 (Linux) - Download & Review
Linux Mint 17 Qiana "RC" Cinnamon and Mate Versions Released - NoobsLab | Eye on Digital World