SwfitUI impossible working with 2 NavigationView

Working with more than 1 UINavigationController is pretty common in a UIKit app

by example, you could have one navigation controller for an on boarding process to finally arrive to a main menu like a UITabBarController where each tab is embedded in it's own navigation controller

however it's not possible in SwiftUI

when you push a view where your destination view has it's own NavigationView, you will have 2 navigation bar embedded

it's that a bug or the expected behaviour?

thanks
SwfitUI impossible working with 2 NavigationView
 
 
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