Instagram does not notify users when you take a screenshot of a post. This applies to all posts including photos, videos, and carousels. You can screenshot Instagram posts freely without the content creator receiving any notification. The only situation where Instagram notifies users of a screenshot is when someone takes a screenshot of a disappearing photo or video sent in a direct message (DM), including messages in Vanish Mode. For regular posts, stories, reels, highlights, profiles, and standard DMs, no screenshot notifications are triggered. In summary:

• Screenshotting Instagram posts: No notification sent.
• Screenshotting stories, reels, highlights: No notification.
• Screenshotting disappearing photos/videos in DMs or Vanish Mode: Notification sent.

Therefore, you can screenshot Instagram posts without worrying about notifications being sent to the post owner.