Back in the day ~2010, Facebook was the app store. Farmville et al were more popular than the top games on mobile at the time. They really should have pushed for a mobile version of it, as the lack of that is what killed it.
it's likely dumber than that: bait and switch. Facebook had done this before: they gave third parties rich access to their data via Graph API, which in turn helped Facebook to grow.
Once their social graph growth phase began to slow down, Facebook severely cut off data access.
I will never believe Meta or Apple excuses for our computers not being computers. Video Game Consoles are about complete control to create a fake digital market and it needs to end.
I'm not a power-user though. I use a 3-generation-old Oculus Quest 1 that doesn't get first-party official updates anymore. Am I really supposed to expect Meta to push an update to a depreciated platform to disable a feature?