How do I launch a splash screen for every launch in React Navigation V5?

Question

I want to launch SplashScreen, for every App launch where I'll be performing a large number of tasks. Once this is done, I'll navigate to AuthScreen or MainScreen.

Since there is no SwitchNavigator in V5. How do I achieve the following conditions,

1. AuthScreen: When a user clicks the Android hardware back button, he has to exit the App without going back to SplashScreen.

2. MainScreen: Same scenario as above, When a user clicks the Android hardware back button, he has to exit the App.

I can place SplashScreen inside <RootStack.Navigator/> making SplashScreen as initialRouteName but it didn't satisfy the above conditions.

Can anyone help me out where should I place the SplashScreen component in V5?

Here is the AppNavigation.js file

const RootStackScreen = ({ userStatus }) => {
    return (
        <RootStack.Navigator headerMode="none">
            {userStatus ? (
                <RootStack.Screen name="AppDrawerScreen" component={AppDrawerScreen} />
            ) : (
                <RootStack.Screen name="AuthStackScreen" component={AuthStackScreen} />
            )}
        </RootStack.Navigator>
    );
};

const AppContainer = ({ user }) => {
    return (
        <NavigationContainer>
            <RootStackScreen userStatus={user} />
        </NavigationContainer>
    );
};