As I understand it: the main issue with fallout 4 from a modding pov is that they reworked the entire engine twice between FONV and FO4. Once for Skyrim, which made it much easier to make mods, and then again for FO4 which made modding some things much harder, if not impossible without workarounds.
Anecdotally but this is why I felt there were less interesting fallout 4 mods to me than NV despite there being more of them.
As I understand it: the main issue with fallout 4 from a modding pov is that they reworked the entire engine twice between FONV and FO4. Once for Skyrim, which made it much easier to make mods, and then again for FO4 which made modding some things much harder, if not impossible without workarounds.