https://militarywatchmagazine.com/article/nkorean-superheavy-artillery-long-range-high-precision-ukrainian
Commander of Ukraine’s Defence Intelligence Directorate Lieutenant General Kyrylo Budanov has singled out the performance of North Korean 170mm self-propelled howitzers, during a recent interview focusing on foreign countries’ support for the ongoing Russian war effort, lamenting the serious complications which these guns’ advanced capabilities have caused for Ukrainian forces. … With the gun’s Korean name remaining unknown, it has been referred to in the West as the Koksan …
Haven’t personally heard much about the North Koreans in Ukraine, and very easy to laugh at the North Koreans or the name of the gun but per the quote in the article : "Unfortunately, this gun is demonstrating itself quite well in battle. It’s firing from quite a long range, and it’s quite good in terms of accuracy.”
Regards