China is the only country in the world that requires Google Maps servers to be ran on Chinese government data centers by non-Google employees.
https://nationalinterest.org/blog/the-buzz/one-thing-north-k...
If you zoom in on South Korea you'll notice that the map tiles are raster-based instead of vector-based like the rest of the map. At certain zoom levels, South Korea looks like it has no roads or cities, compared to the much more industrious North. It's kind of hilarious.
I'm sorry if this comes off as nit-picky as it is not my intention, but comparing the mapping services requirements of China and SK are worlds apart. The intent of each policy is important to think about.