Android Navigation Component multiple NavHost implementation - android-architecture-navigation

Question

I have a simple single Activity app, the activity has only a toolbar and a FragmentContainerView that acts as the NaHost.
In one of my main screens, I have a Fragment that contains a BottomNavigationView that should toggle between 3 child Fragments. This parent fragment has also a FragmentContainerView that is also defined as a NavHost for the child fragments.
Can this setup work by just using one NavGraph? How can I tell the the navigation component which NavHost to use when switching between main screens which is different to when clicking on the BottomNavigationView items?
Activity XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="#+id/app_bar_container"
layout="#layout/app_bar" />
<androidx.fragment.app.FragmentContainerView
android:id="#+id/fragment_container"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:defaultNavHost="true"
app:navGraph="#navigation/nav_graph" />
</LinearLayout>
Parent Fragment:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.fragment.app.FragmentContainerView
android:id="#+id/fragment_container"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="#id/tab_navigation"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/nav_graph" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/tab_navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_navigation_items" />
</androidx.constraintlayout.widget.ConstraintLayout>