As of now, Facebook does not notify users when someone takes a screenshot of their story. So, no, you can't directly see if someone has screenshot your FB story.
Facebook doesn't support seeing if someone has screenshot your FB story. This lack of functionality is to balance the user experience. On one hand, if people knew their screenshots were being monitored, they might be less likely to engage with stories. On the other hand, for those sharing stories, not being able to know about screenshots also means they can't take any action against it. It's a trade - off that Facebook has made to keep the platform user - friendly and to respect different aspects of privacy.
No, Facebook doesn't notify users when someone takes a screenshot of their story. So, in general, you can't directly see if someone has taken a screenshot of your FB story.
Sorry, it's hard to tell. Facebook doesn't provide a built-in feature to notify you when someone takes a screenshot of your story. But there are no definite ways to find out for sure.
As of now, Facebook does not notify the person who posted a story if you take a screenshot of it. So, in general, no one can see that you've screenshot their FB story.
Facebook doesn't currently have a feature that allows you to see if someone has screenshot your story. This is mainly for privacy reasons. People share things on their stories with the expectation that others can view it briefly, but screenshotting is something that can't be easily monitored by the platform in terms of notifying the story creator.