[Back In The Saddle]

It's not possible to give a definitive answer to such a broad brush question. But there is not a rule that says, "Contact made after a dunk/layup attempt after the ball leaves the hand is not a foul;But a foul shall be called when the defender makes contact with a 3-point shooter after the ball leaves the hand"

All fouls are judgment calls. Some of the judgments involved include whether the contact was illegal or not, did the defender have a legal guarding position, who initiated the contact, whether the contact put the shooter at a disadvantage, whether the contact altered the shot or shooting motion, whether the contact was on an airborne shooter or had the shooter returned to the floor, whether contact on an airborne (and thus vulnerable) shooter was simply unacceptable. Also as players become older, stronger, more skilled, judgments regarding whether a player was put at a disadvantage become more skewed towards expecting the player to "play through" the contact.

To address a specific call or no-call would require seeing the actual play.