Does Instagram notify when you screenshot a story? No, Instagram currently doesn’t notify others when you screenshot a story. While the notification feature for story screenshots was present which notified users of you taking a screenshot of their story for a short period of time during 2018, it has been since been removed.
So you can rest assured about taking a screenshot of either Reel, a story or an Instagram post. However, if you take a screenshot of a Instagram DM (Direct Message) while you are in vanish mode (you can access it by swiping up from the bottom of the screen while in DM), you will get a notification that you have taken a screenshot of the DM along with sending the same notification to the other user who you are having a DM with.
This is why it is important to know when you take a screenshot and where exactly on Instagram, otherwise you could be in a potentially embarrassing situation.