There are people a lot more capable of answering your questions here than me, but I want to link a few videos about the Democratic People’s Republic of Korea:

My Brothers and Sisters in the North - A documentary about the lives of people in the DPRK done by a South Korean-German woman that gave up her South Korean citizenship to film it.

Loyal Citizens of Pyongyang in Seoul - A interview with 2 North Koreans living in Seoul that aren’t allowed to go back to the North, despite wanting to.

We Went to North Korea To Get A Haircut - A video from the channel Boy Boy demistifying some stuff by actually going to the DPRK.

COREIA DO NORTE: LUCAS RUBIO - This is a recent interview in a brazilian podcast with Lucas Rubio, a researcher about the DPRK where he talks about the country, ranging from the war to his personal experience visiting it. The whole episode is in portuguese but from the little bit that I tested, the automatic translation to english is decent enough, although it misses a few things and get some names wrong.