How to install Gnome Shell Extensions on Ubuntu 20.04 Focal Fossa Linux Desktop - LinuxConfig.org

The objective is to install Gnome Shell Extensions on Ubuntu 20.04 Focal Fossa Linux Desktop.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-gnome-shell-extensions-on-ubuntu-20-04-focal-fossa-linux-desktop