App name (version): net.openra.OpenRA-d2k, net.openra.OpenRA-cnc
Flatpak OpenRA uses icons net.openra.OpenRA-cnc. Papirus has net.openra.OpenRA.openra-cnc links. So links for d2k and cnc should be renamed, default is named correctly.
In KDE, dune and tiberian dawn use the default openra icon, while elsewhere (nemo in the screenshot) they use hicolor icons.
Flatpak OpenRA uses icons
net.openra.OpenRA-cnc. Papirus hasnet.openra.OpenRA.openra-cnclinks. So links for d2k and cnc should be renamed, default is named correctly.