Indeed, reading a bit more about Qt VNC qpa plugin shows it’s a non solution since this won’t help with the window manager issue.
From my perspective the dwm tiling window manager needs to be replaced with something more user friendly, like also mentioned above in this thread.
Perhaps the easiest solution is to just do what the community Docker container does: using the OpenBox window manager, which is still light weight but doesn’t require short-cut kong-fu to be useable. https://github.com/deconz-community/deconz-docker
I’ve just made a small test here locally running the container:
Works beautifully and is surprisingly snappy. The only “gotcha” is that there is no taskbar installed by default and if windows were hidden/minimized, the window list menu can be opened by mouse middle click on the desktop, which may not be so intuitive.
Other than that the Dockerfile in HA addon would only need to replace dwm with openbox since the remaining stuff like VNC server is already there.