In order to run it, you need .Net 6 Desktop Runtime and .Net Framework 4.5.2 Runtime installed. In order to run Mod Manager, you need to install these: # Debian/Ubuntu and derivatives sudo apt install ...
I'm not entirely sure how this could happen, but I have a hypothesis that the last remaining application with the gnome 48 runtime moved to gnome 49 or 50 and thus 48 is not needed anymore and ...