Great news!
I tested on my device. XCUIApplication.openURL can launch the app, but scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) and application(_ application: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) are not called.
I am using XCode 14.3 and the simulator is iOS 16.4.