I’m not sure what you mean by developers “having to account for” the Dynamic Island. Apple’s not forcing anyone to implement Live Activities to my knowledge, so I can only guess that you’re referring to developers needing to account for the slightly taller status bar corresponding to the Dynamic Island.I still find that whole island thing baffling.
I would gladly trade an additional 3mm of top bezel for camera/sensors for this nonsense in the middle of the screen, and all the complexity over what to do with it or developers having to account for it at all.
That’s…not a thing unless they’re not using Auto Layout, which Apple has encouraged (and later required) developers to use for over a decade now. They don’t have to “account for” anything in the status bar, just like most apps didn’t need to account for the notch on the iPhone X. iOS did it for them.