In my part of Europe, the lane changing car is in fault, and the cars behind (expect the first of them). I don't know where it would be allowed to stop in the

In my part of Europe, the lane changing car is in fault, and the cars behind (expect the first of them). I don't know where it would be allowed to stop in the middle of a highway lane for no apparent reason, especially after a lane change that did not result in a proper distance to the car behind.