> I think if you set the DesktopName to include Lubuntu, you could have a lubuntu-portals.conf file shipped by lubuntu-default-settings
Yes, if you want Lubuntu-specific settings, then the way to do that would be DesktopNames=Lubuntu;LXQt;, which would mean that if lubuntu-portals.conf exists, it is used in preference to a lxqt-portals.conf in the same directory.
> I think if you set the DesktopName to include Lubuntu, you could have a lubuntu- portals. conf file shipped by lubuntu- default- settings
Yes, if you want Lubuntu-specific settings, then the way to do that would be DesktopNames= Lubuntu; LXQt;, which would mean that if lubuntu- portals. conf exists, it is used in preference to a lxqt-portals.conf in the same directory.
[edited: should be DesktopNames, plural]