1. Create SplashVC

Create a new Swift File: In your Xcode project, right-click on the project's folder in the Project Navigator and select "New File from Template" -> "Cocoa Touch Class". Name it "SplashVC.swift".

2. Update your AppDelegate.swift like

   @main class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    private let navigationController = UINavigationController()
   
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        window = UIWindow(frame: UIScreen.main.bounds)
        window?.rootViewController = navigationController
        window?.makeKeyAndVisible()
   
        goToSplashScreen()
        return true
    }
   
    private func goToSplashScreen() {
        let splashViewController = SplashVC(nibName: "SplashVC", bundle: nil)
        navigationController.setViewControllers([splashViewController], animated: false)
    }
   

   }