Why does the new inventory UI show less items on Expanded than before?

[Elamys]

Didn't the PS4 versions of Skyrim and Fallout allow mods? Just need to build an interface for the console players to obtain them.

I think their concern is mods that might allow players an advantage that won't work on PS4, though I'm unsure as of the limitations of such. I think the best solution would be to have an SE-curated place for mods where they only approve and post ones that that don't provide such advantages.