Agreed, if you don’t want them to have data on you the best case is to never use anything FB owned, including Instagram and WhatsApp.
If you already use FB services, stop using them and don’t give anymore data. They will still know about you, but at least you won’t give them any new information.
If you already use FB services, stop using them and don’t give anymore data. They will still know about you, but at least you won’t give them any new information.