The full analysis of this would need to take in account:

* Who actually determines the essential means and purposes for each processing purpose (and is truly doing it). Fashion ID case is quite relevant here.

* If terms which grant Meta these rights and user a lot of obligations would fall under unfair terms or unfair commercial practices directives. If they do then those aspects of the terms are invalid. These could, for example, affect requirement that the user must get consent from data subject for Meta's processing operations.