What if I never signed up. I am sure they know about me. Wonder if there is a way to request that information from them...
If you're in Europe you might have some some recourse (GDPR and such), but if you're from the US you are most likely out of luck.
Regardless, Facebook might have a detailed profile on you but not know your name. I doubt there is much you can do.
[1]: https://theconversation.com/shadow-profiles-facebook-knows-a...