[android] How do I run the app's activity?

[bipll]

In my application, I start a foreground service which is a custom service that runs in a separate process, same .so:

public class MyService extends QtService {
@Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        createNotificationChannel();
        // This should be a different .class, correct?
        Intent notificationIntent = new Intent(this, MyService.class);
        PendingIntent pendingIntent =
                PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE);

        notification = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle("Title")
            .setContentText("Text")
            .setSmallIcon(R.drawable.notification)
            .setContentIntent(pendingIntent)
            .setTicker("Running")
            .setOngoing(true)
            .setPriority(NotificationCompat.PRIORITY_LOW)
            .build();

        // Notification ID cannot be 0.
        startForeground(ONGOING_NOTIFICATION_ID, notification);
        return START_STICKY;
    }

Consequently, I'd love this event to raise to the foreground the main activity itself when tapped. My understanding is that I need to pass its .class to the Intent constructor, but I couldn't figure out which one. The app itself is written in C++/QML and I needed no special reason to define a custom Activity subclass, but the default name from AndroidManifest.xml is org.qt.....QtActivity which does not look very specific.

Do I miss something? Or do I need to subclass Activity after all? Could anyone please help?