ios – Navigation Behaviour and Styling shouldn’t be working in swift to SwftUI usages

My venture base is in Swift, and all navigation customizations are accomplished in extensions to UIViewController.
like this:

class BaseViewController : UIViewController {
    func setupNavigationBar(){
        //customization code right here
    }
}

Initially we have now Dashboard display that may be very fist display publish login/signup -> lunch

All navigation was accomplished from the dashboard display and every display (UIViewController) inherited the bottom VC.

Now we have eliminated Dashboard With TabsBar that’s written in swiftUI and With Tab Some screens are conventional SwIft Display screen and a few are newly written in swiftUI, there are circumstances.

Case 1:
Swift to Swift : Navigation working Effective

Case 2:
Swift to SwiftUI : Navigation working Effective

Case 3:
SwiftUI to SwiftUI : Navigation Not working (Need conventional UIViewController customisation)

Case 3:
SwiftUI to Swift : Navigation Not working (Double Navigation Displaying)

I wish to setup my navigation in such a method that both Swift’s Display screen is open or SwiftUI’s, it ought to work accurately for each.