Hello Andy,
this topic will not only be relevant for the 12 Pro Max. It IS already a topic for the 12 / 12 Pro.
The Scaling on the 12 Pro is already "wrong". I think it is scaled up from the 11 Pro from its 5,8" to the 12´s 6,1".
I think it is a huge mistake from Apple to upscale the UI from the iPhone 11 Pro to the bigger screen of the iPhone 12 / 12 Pro.
I came from a iPhone XR and immediately realized the far bigger UIs in the iOS Apps.
I attached some examples how show the huge difference.
We need to push this. I hope Apple will fix this issue. All new iPhone owners will be "robbed" of there bigger display.
This also effects 3 party Apps. But some Apps are already optimized for the iPhone 12 / 12 Pro. See Screenshots from the Apps.
For reference. The iPhone settings are exactly the same in terms of zoom, or displaying bigger text.
Greetings
Max