So I downloaded my facebook data a few days ago and there were no phone nrs in there, no call history, actually much less of everything than I thought they'd have. Are they lying to me or does this depend on other factors?
I’d argue the data arcchive one can download are incomplete. One, it’s missing Likes.
Second, I never put my phone number in Facebook, but I know they have it, because at one time, it was pre-filled in the enable account recovery by phone-dialog.
So what you can export isn’t the full story. The question however is: how do you prove that and really ask for ALL data they have on you?
The reports going around mostly stem from people who used the Facebook app on older versions of Android. A combination of people not understanding what Facebook would do with their data, and poor design in the Android permission system, granted access to call and message logs, which is how Facebook got them.