Same happened here with my iPhone 11. Had it for two weeks, and one day, camera was cracked. I don’t know how it might have happened. I never dropped the phone, and I always use a protective case. I think it is a manufacturing defect. I went to Apple yesterday, and they told me the same thing: they do not repair rear cameras, as the rear side of the iPhone is all one piece (rear, cameras and battery), so you need to get a new phone for $399. It makes no sense at all that this happens so often, and they don’t offer a way to repair it at a reasonable cost. Has anyone found a different solution for this?