Flutter - Automatically start application on Firebase FCM Notification Received

I'm developing an application, related to Child Security, in Flutter.

A parent can request the child's application to send an Image or a 15 seconds Audio.

FCM is implemented and perfectly working fine when the application is running or in the background. When a notification received on Child's mobile application, the application moves to the relevant screen and performs the task.

But when the application is closed/terminated, it's not working. The notification is received, but the application doesn't start automatically. I have to click the notification, which I don't want to.

Can I achieve this, in Flutter? Something like WhatsApp or Facebook Messenger call feature?

What I have tried so far is, calling the main function on a notification received or runApp, but got no success.

void _firebaseMessagingBackgroundHandler(RemoteMessage message) {
    main();
    <------- and ------>
    runApp(MaterialApp(home: ChildDashboard()));
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
  runApp(MaterialApp(
      debugShowCheckedModeBanner: false,
      home: CustomSplash(
        imagePath: 'assets/images/logo.png',
        backGroundColor: Colors.pink[50],
        animationEffect: 'zoom-in',
        logoSize: 1000,
        home: sendToRelevantScreen(),
        duration: 2500,
        type: CustomSplashType.StaticDuration,
    ),
 ));
}