I installed the desktop build into a Fusion VM. As gdm/gnome do not run so well with older video cards I wanted a less demanding desktop environment. So I installed the desktop-lxqt bundle and I was able to switch to it in GDM. All seemed well, except LXQt needs a Window Manager. The default is OpenBox.
To my surprise, the bundle does not install a window manager, nor do I see an Openbox bundle available.