I agree with the shop UI needing an overhaul 100% and it really doesn't help that they never explain how the shop UI works either. Literally the only reason I knew to be on my guard when dealing with traders in this game is because I made the mistake of trying to sell things to traders back in DOS2 and not realizing that they weren't giving me my freaking money. I was just giving away free items to people without even realizing it for hours on end, had to restart my playthrough.