It probably has to do with the latest big update, which aimed to integrate mods in the actual game folders automatically(i.e. forces mods to be "native") so that Vortex is no longer needed. I don't know the technicalities behind it, but that is what my friend told me, and she has more experience with using mods in games and how they are installed. So, I guess it depends on how the BG3 crew "wants users to install mods" now, which I haven't tried. I only just installed the game after deleting it because mods kept breaking for my 2-player save(it would always kick her to the main menu while trying to join my game after every new patch or update) and I got tired of it. Seeing this post doesn't give me much hope for it.
