Facebook Messenger Screenshot Notification
Because Facebook Messenger is a messaging app, it may have a feature to notify you that a screenshot has been taken in some cases. This feature may include marking messages or photos sent in the application with a small icon that is sent as a notification when a screenshot is taken to the other party. Features and notifications may change over time, new features can be added or existing features changed when apps are updated or new versions are released. Therefore, you can find the most up-to-date information on the presence or absence of a screenshot feature in the Facebook Messenger app from the app store or official sources. If you think such a feature exists, you are using the current version of the application and you should not forget to check the privacy settings.