This is intended for GUI-only mods. There are some mods that would fall awkwardly on the spectrum, such as campaign-only mods - I would edge towards marking those as compatible overall, despite some maps being unavailable.
This also always turns on showing mods in the lobby game list screen, since that seems useful. The new display looks like this:
Mods that are always compatible are slightly gray, don't show version data, and I added a tooltip. If mods are incompatible, the 'mods' bit is red and players can hover to see informations in the tooltip.