findNavController(this).popBackStack(); // f9 fragment is popped out
((AppControllerActivity) requireActivity()).bottomNavigationView.setSelectedItemId(R.id.Tab1);
((AppControllerActivity) requireActivity()).getCurrentNavController.getValue().popBackStack(R.id.f3, false);

((AppControllerActivity) requireActivity()).getCurrentNavController.getValue().popBackStack(R.id.f3, false);