The objective of this guide is to install LXQt desktop as an alternative desktop environment for Ubuntu 20.04 Focal Fossa Desktop/Server Linux. One of the features of LXQt is that it has comparatively low resource requirements.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-lxqt-desktop-on-ubuntu-20-04-focal-fossa-linux