There are also third-party apps and online tools available that can help you download Facebook stories, such as:
No. Simply typing https://m.facebook.com/story.php?story_fbid=123456 does provide a download button. Facebook does not offer a native “Save Story” option for other users’ content (except your own). The search term reflects a common misconception that manipulating the URL can expose a hidden download link. Https M.facebook.com Story.php Story-fbid Download