agreed with Vic here.
it isnt depth, it constantly changes stuff around for nonsensical "a wizard did it" or "a god did it" reasons and invalidate the actual depth thats there.
I didn't really follow anything in FR past 3rd edition, but it sounds like a mess initially designed to push people to Eberron/4e which didn't work and had to be reversed with another mess for 5e ?
I wonder if any of this will actually be explained in BG3, or will it be assumed that everyone is a DnD super-nerd
