SwiftUI: How to Pop to TabView From NavigationView #3 https://thinkdiff.net/ios/swiftui-how-to-pop-to-tabview-from-navigationview/

SceneDelegate.swift

var window: UIWindow?
    var contentView: ContentView?
    var appState: AppState?

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        if let windowScene = scene as? UIWindowScene {
            let window = UIWindow(windowScene: windowScene)
            self.window = window
            reloadDashboard()
        }
    }

    func reloadDashboard() {
        if let window = self.window {
            window.rootViewController = UIHostingController(rootView:
                contentView
                    .environmentObject(appState!)
            )
            window.makeKeyAndVisible()
        }
    }