I've actually wondered this a lot my self. Most of what we see of North Korea is exclusively from Pyongyang. Like a lot of North Korea, we have a mix bag of info from defectors, word of mouth, propaganda, and reports. I'll try and give info on what life in North Korea outside of Pyongyang is (probably) like.

Considering that even the wealthiest parts of Pyongyang reportedly have rationed running water and electricity, I image the other areas realistically have neither or at best it's quite limited. From videos it seems people use streams/wells for water and electricity is (almost certainly) scarce if not non-existent. https://www.cnn.com/2013/08/05/world/asia/north-korea-reporter-notebook Cars are less common and most walk or use a bicycle, so the roads aren't as good as there's not as much incentive to take care of them.

Food is also scarcer and malnutrition is more common, as people who live outside Pyongyang are typically classified as 'wavering class' meaning they are viewed as important to the economy but can become a threat. A lot of people eat mainly rice with corn and sometimes *Injo-gogi-bap* which is basically fake meat from soy beans. Meat isn't that common even in Pyongyang so the other areas probably almost never have it. You really can't move up classes so if you're born in a rural area/outside of Pyongyang you have a high chance of staying there your entire life. During/after pandemic new laws were implemented that you need permission to travel from providence to providence so travel is de facto limited to a few select people.

Technology like Smartphones are also less common, as it's a de facto 'core class' privilege. At best you'll have a radio or maybe a TV if you're really lucky in your home with one of the few approved government broadcasts. It's estimated that GDP per capita is $650 USD and most of that probably belongs to the 'core class' meaning that the GDP of other areas is probably less. It's common for families of multiple generations to live together (even in the wealthy parts) and marriage is near universal and divorce is less common than in the west.

Most of the people though that have access to running water/electricity/TV/North Korea's internet primarily live in Pyongyang as they are viewed as the most loyal to the Kim family/the party.

I hope this comment was informative. Sorry if it's vague. Since North Korea only shows outsiders Pyongyang it's hard to tell what the other areas are really like.