It moves up and down in heave motion. Typically a double wishbone with shorter upper link the roll Center lowers during compression. And vice versa

But if the car rolls the roll center moves horizontally also. The already mentioned short upper longer lower link car will shift the roll center towards the right during a left corner. By how far depends on ratio of upper and lower link length and angle. So the camber gain has big influence on horizontal movement of the rollcenter during cornering/roll.