Apps cannot be on multiple screens in iOS 18

Since using the iOS 18 beta in July I am unable to add apps to multiple screens at a time. For example, I have a screen for my work focus and I cannot add the calculator app to this screen while it is on another screen. If I try to add it to a screen it is removed from the other screen.

Has anyone else noticed this? Is this expected to be fixed in iOS 18 or could it be a retrogressive feature?

Apps cannot be on multiple screens in iOS 18
 
 
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