As of 2025, Instagram does NOT notify users when someone takes a screenshot of their Stories. This applies to all types of Stories, whether regular, from Close Friends, public, private, or saved as Highlights. Instagram only sends screenshot notifications in very specific cases, such as disappearing photos or videos sent via Direct Messages (DMs) or messages in Vanish Mode. The screenshot notification feature for Stories was briefly tested in 2018 but was discontinued due to negative user feedback. Since then, users can screenshot Instagram Stories freely without any alerts being sent to the story poster. In summary, you can screenshot any Instagram Story without the person who posted it being notified.