I think it would be really cool if VS had more in-depth Chemistry mechanics, with dedicated tools commonly used in chemistry (I don't really know all the terminology, but yk like decanters, condenser[already in the game], beakers etc.). Maybe it could be like early chemistry (Alchemy) used to create better heals and medicine (I heard that diseases and other ailments were in consideration), more advanced explosives (maybe even firearms) and agriculture.
A dedicated producing mechanic like Smithing and Tanning, but for Chemistry would be really cool in my opinion. I know that there are mods out there that are similar, but I though something more grounded in reality would be really cool (Perhaps there is a mod for this out there, I haven't really investigated).