This is definitely on the horizon and future generations won’t even be aware of a time when you didn’t pay a subscription for every aspect of life. (TikTok screencap)
The one smart feature I could see useful on a fridge would be for it to send me some sort of notification if the door is left open. Perhaps it could also send a notification if the temperature inside gets too warm (or too cold) - which assuming the door is shut would probably mean the fridge is broken.
With that said, I'm perfectly happy with a dumb box that gets cold inside and has a simple electro-mechanical switch to turn the light on when the door is opened.