nav_graph.xml

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    app:startDestination="@id/fragmentHome">

   <fragment
        android:id="@+id/podcastFragment"
        android:name="com.furkanaskin.app.podpocket.ui.podcast.PodcastFragment"
        android:label="PodcastEpisodesFragment">
        <argument
            android:name="podcastID"
            android:defaultValue="hello"
            app:argType="string" />
        <action
            android:id="@+id/action_podcastFragment_self"
            app:destination="@id/podcastFragment" />
    </fragment>
   
</navigation>