Alternatively, you can always (without unfriending them). You won’t see their Story at all, and they’ll never know. Go to their profile → Following → Mute Story.
While there is no single "official" academic paper on this topic, several technical guides and community reports outline reliable methods and tools for viewing Facebook stories anonymously. view facebook stories anonymously
: If you accidentally view a story and want to hide your name, you can block the user immediately. This removes your name from their viewer list. If you unblock them after the story expires (24 hours), they will never know you viewed it. Alternatively, you can always (without unfriending them)
After testing all the methods above, here is the honest ranking of how to view Facebook Stories anonymously: view facebook stories anonymously