Actually (put on fedora) a "smart" fridge is not necessarily bad.
No what absolutely sucks is lock-in and enshittification.
If you were to imagine a FLOSS OSHW fridge that used e.g. OpenFoodFacts and data from your purchases, e.g. OCRing your grocery list receipt or online purchases and genuinely helped with stock, recipes, diet, etc why not.
The WHOLE point is control, it's not the technology.