This isn’t a protection, it applied retroactively as well. Anyone who ever gave FB login AS AN OPTION is now required to create Sign In with Apple.

I do not buy their company line at all. This is simply Apple flexing its power in the App Space to require developers to implement an ecosystem very few would do of their own volition.

You can argue it’s a good thing. I disagree. But it is hopefully clear that Apple being able to wield this kind of power is indicative of monopolistic power in that marketplace.