Really happy with my ZorinOS installation.
I'm slowly adapting it to my liking. My current pet peeve is that I cannot seem to make the shortcut Super+Q work to close the active window. I've set this as a shortcut in the Zorin settings (replacing the standard alt+F4), but it doesn't work. It shows the numbering of the app icons in the task bar. Like this:
The described solution does not seem to work, as I cannot find the described dash-to-dock extension.