I found this relevant tidbit in the release notes that's possibly it?
In apps built with the iOS 27.0 SDK, windowExternalDisplayNonInteractive scenes are no longer offered automatically by the system. Use UIViewController.registerSceneAccessory(_:) with a UISceneAccessory.externalNonInteractive instance to display non-interactive content on external display scenes. (177015874)
Are there any examples for how to use this?
Topic:
UI Frameworks
SubTopic:
UIKit
Tags: