I think the common US view of life in North Korea and China is probably about 90% distorted, more propaganda than reality.

I'm not vouching for any country, I'm just saying the public perception in the US is completely distorted.

I wouldn't be surprised if the Chinese had a slightly more realistic view of the US.

That's a reasonable take. I feel like China has such extreme ends of the spectrum, from the most modern cities to the most distant rural regions. It's hard to think of China in any sort of unified, whole way.

   from the most modern cities to the most distant rural regions
Because 30 years ago, the vast majority lived in villages and barely had running water/electricity. Today, these villages are mostly empty. People who live there are older people who do not want to live in cities or can't afford to. But even in villages today, they have electric cars, solar panels, ride hailing, and plenty of conveniences.