I really don't know the answer to that.
I don't believe I've had anyone making up things about me....and if they did, then I haven't seen or heard any of it.
I have been blocked by some (I don't even know who, most times, because there was no warning, or argument of any kind to warrant a block) and it's possible they might have things to say about me, but I can't see it so I am left blissfully unaware 🤪
The way I see it, what someone else has to say about me is not my business.
(sorry you're having a rough time with that kind of shit though)
