It's certainly a novel situation. I suppose you could call it a mutiny in the sense that Wagner is being told by the state that it is now explicitly under the

It's certainly a novel situation. I suppose you could call it a mutiny in the sense that Wagner is being told by the state that it is now explicitly under the command of Shoigu, and Prighozin is refusing, which has led to what is now happening: an attempt to put down a rebellion and a mutiny.