There is a level where you don't care about more improvements. Fridge is a box of cold stuff. I don't need much more than that.
Sure it could be slightly more efficient but even 20 years old ones are pretty efficient, and I'd rather just slap an extra solar panel or two on the roof rather than replace whole fridge and junk the old one.
It looks like all of the major manufacturers have a "sealed system" warranty for five years:
A refrigerator’s sealed system typically refers to the compressor, evaporator, condenser, dryer, and connection tubing. Most companies cover both parts and labor for this system for five years. Miele and KitchenAid extend this sealed system warranty for an extra five years. Note that years six through 10 cover parts only.
Barring something going horribly wrong, even the cheapest of cheap household appliances will last that, and more. Most major retailers offer longer retailer warranties than that. And, for an absolute bottom of the feature set appliance, a repair shop still exists
Sure but how can I code an ai bot that lives in your fridge and analyzes your shopping habits, and sells that to the highest bidder? Maybe with amazon grocery integration so that it sends your groceries before you even knew you needed them. And Microsoft Tay integration! Ask your fridge questions and have it answer, in a hilariously racist fashion! New Andrew Tate plugins sold as DLC.