Vamifier is only a plugin that allows proper soft shadowing (NGSS2) used by meshed in VAM1. Any LD familiar with VAM knows that there's a gcinc library that allows building assets compatible with realtime lights from VAM. It's been a long time since VAMifier is not needed unless you stumble upon assets and content made by people who are not really attentive : )
Really good to know, I was wondering why CUAs started looking better at some point . I had some trouble finding the mentioned cginc (and this thread came up while searching), so I am linking it here
hazmhox - The definitive asset creation tutorial for VaM (section 6 - Fixing the shadows)
(I assume the downloadable file is what UnityShadowLibrary.cginc looks like after being patched through NGSS2)