When browsing in shops with a very similar assortment, it is often hard to see what is already in the basket, and the customer ends often up on a product that is already in the cart. It would be great to have a system config for that to enable or disable a badge function on the listing and product detail page.

I had this experience recently when buying a pair of jeans pants, which at first glance looked all the same in the listing. It should be performant if just the UUIDs are compared/matched (like Rules).