No, static friction does not change once an object starts sliding. Static friction is the force that opposes the relative motion between two surfaces in contact when there is no sliding. It acts to prevent the sliding motion from occurring. However, once the object overcomes the static friction and starts sliding, a different type of friction called kinetic friction comes into play.
Kinetic friction is the force that acts between two surfaces in contact when they are sliding relative to each other. Unlike static friction, the magnitude of kinetic friction is typically constant for a given pair of surfaces and the normal force between them. It depends on factors such as the nature of the surfaces and any lubrication present, but it does not change as long as the sliding motion remains constant.
So, while static friction prevents the object from sliding, once it starts sliding, the force of kinetic friction takes over, and the magnitude of kinetic friction remains constant (ignoring factors like temperature changes or wear of the surfaces).