There is no official report published by the North Korean authorities about rounding up pet dogs or using them as meat to tackle the food shortage.
But there is a mystery surrounding the order as the Russian embassy in Pyongyang has denied the reports as baseless. Further, the article published in Chosun was written by a North Korean defector.
However, we do not have enough evidence to support the claim. Thus, we cannot objectively verify the claim at the current time.