This suggestion is inspired by this reddit post:
https://www.reddit.com/r/BaldursGate3/comments/lvc2yj/yes_im_that_type_of_person/(And if someone else made the suggestion in the reddit thread, I don't want to steal their thunder, just don't have time to read the whole thing.)
It would be super convenient if we could assign a custom tool tip to backpacks/pouches in inventory with labels like "Potions","For Undead","Drow Loot", "Poison Mitigation" and other custom labels that would pop up when hovered over. That way we could use backpacks and pouches for organizing inventory suited to our individual play style. Or perhaps choose a specific icon superimposed on the backpack icon based on one of the items stored in the pouch.
Alternatively, if the contents of the backpack popped up when hovered over, that would help too, though it might be mildly annoying when perusing inventory.