It depends. You have the option to control who can see your Facebook Stories. You can set it to be public, visible to friends only, or specific groups of people you select when posting.
A Facebook story is a short-lived post that users can share on Facebook for 24 hours. It can include photos, videos, or text to show what's happening in their lives at the moment.
I'm not really sure as I haven't specifically heard of this 'p se pyaar f se faraar real story'. It could be a very specific regional or personal story. Maybe it's about a relationship that started with 'p' (whatever that represents in this context) in terms of love and then had some kind of flight or escape represented by 'f'. But without more context, it's hard to say for sure.
The legality of screenshotting a Facebook story is a bit complicated. If it's just for your own viewing or to save a memory privately, it's usually okay. But if you start sharing it widely, especially if it contains someone's personal information or creative work without permission, that could be a legal issue. Facebook also has its own terms of service which may play a role in determining legality in some cases.
To read Facebook stories, first make sure you have the latest version of the Facebook app. Then, when you open it, you'll see circles or profile pictures with a ring around them at the top. Those are the stories. Just tap on them to start watching.