I grew up under this commie system in a rural Polish village in the 1970's.
While my American peers had TV, cars, and supermarkets, I had no running water, no sewer service, intermittent electricity, and no fancy technology like refrigerators. We farmed wheat, beets, potatoes for sale, and raised animals for our own use. Without running water, you're using a well, which is terrible in the winter, particularly if it's cold, the same goes for going to the bathroom in outhouses. Sitting on a cold wooden seat in -20C is really awful. When we did get water from the well, we had to boil it for a while to kill the germs, so having water to drink was a production. When it came time to take a bath, you'd boil well water to warm it up, and make a warm bath. Everyone used the same water since it took so long. Kids washed first, then women, then men.
yes, we certainly produced zero waste. All the crops were canned and stored in the pantry, all the meat was cured and stored to dry, and whatever was perishable was canned, pickled or preserved in some way (remember, no fridge).
It's a freaking hard way to live. When we fled to the US eventually, it was like coming to a different world, life was simply so much better that it's hard to compare.
So, when I see stories like this, I really hope that zero-waste doesn't happen for the reasons of poverty. It's positively awful for the people living it. It's also very dirty. People who are poor have no extra funds to get rid of unsalvageable waste other than to bury or burn it, and the number of tires, old boots, or chemicals that got burned in the stove was ridiculous. Living in a cold country, with coal and wood being the most plentiful heat sources also made for some lousy air, and I grew up in the Podlasie Voivodeship, which was cleaner than most because it was completely unindustrialized.
Whatever the communists got right was by accident.