I hate embedded smart stuff in devices in general as they always get support dropped way too soon (and often enshittified with updates as demonstrated), but as a concept a fridge that would keep track what's in it, their expiration dates, and auto-updated a shopping list when something is used up would actually be really handy.

Wanted to make some pasta few nights back but I was out of cheese and the cream had expired, so instant noodles for dinner it was. Again.