I'm not sure if this is exactly what you're asking about, but submitting an app to the App Store currently performs pretty stringent checks on things the app does — including automated scanning for usage of private system APIs and ensuring that apps include appropriate reasons for asking for access to private data (contacts, photos, location data, etc.).

Without certain forms of review, it's much easier for apps to exploit weaknesses (whether in the OS, frameworks, the user, etc.), and I can't imagine that Meta would self-regulate any more than they are forced to now. Their apps and SDKs already hoover up as much data as the system will silently allow, but I'd rather not be forced to expand my device to them, if possible.