To some degree, I would say we might be able to blame a system that ran out of ways to sell us more food, and so it instead switched to selling us convenience.
These days, fewer and fewer people actually prepare their own food — particularly among younger generations. Not only are people busy getting DoorDash and Uber Eats from places where somebody else prepared the food (in god knows what manner), often these services are used to deliver fast food.
The interesting thing about "handmade" food cooked from fresh ingredients — especially if those fresh ingredients are locally sourced in your garden or from local farmers markets — is that you actually end up eating less because it's real food you get the nutrition from, but not only additives and fillers.
I'm not sure how much you experience that in Finland where the food perhaps comes from closer to the producers, but here in the USA people have gotten very far removed from where the food actually comes from.
Meanwhile, we sit still in front of our screens instead of spending a little time and energy actually growing fresh food in our own gardens. Which becomes a "loop" of sort, because something you created yourself IS more satisfying. A carrot from the garden somehow tastes better than one from a supermarket freezer... and, a sort of emotional regulation happens.