Yes, Instagram doesn't directly notify you when someone screenshots your story. However, there are some third - party apps that claim to be able to detect screenshots, but their reliability is often questionable and using them might violate Instagram's terms of service.
Well, unfortunately, Instagram doesn't provide an official way to find out if someone has taken a screenshot of your IG story. This is different from some other social media platforms. It could be because Instagram wants to maintain a certain level of privacy for its users. If you're really concerned about it, you could try to make your stories more exclusive or only visible to a select group of people, but there's no surefire way to know about screenshots.