I'm not sure if Larian reads through this forum but I'll offer my suggestions anyway.
Two suggestions for what should be easy-to-implement quality of life improvements:
1) Make bartering - or more specifically whatever the highest discount is - shareable across all characters much in the same way Lucky Charm is. Whoever is doing the buying and selling, just apply the highest discount from within your party.
2) Any time there's a choice of quest reward items, allow the selecting of any of your party members so that the player can compare the quest items with the currently equipped item from any given party member.
