There are apps which are designed to be used primarily in landscape orientation. Music apps often fall into this category, like GarageBand. The new iOS 26 navigation bar in landscape mode is MUCH higher than in previous SDKs. I am maintaining and shipping a professional piano tuning app which is designed to be used in landscape orientation and the new higher navigation bar significantly reduces the amount of vertical screen real estate for it, leading to visual problems. These screenshots illustrate the difference in nav bar height between iOS 16 and iOS26 and the result it has on my app:
I know that I can completely disable the new UI with the UIDesignRequiresCompatibility Info.plist key. But going forward it would be great to have a solution that does not completely prevent liquid glass UI in my app.
I know that landscape orientation iPhone apps are not the main focus of UIKit, but please note that there are valid professional use cases for it.