How to add back navigation button in navigation component?

Question

Android

Is there a navigation component and an additional back button in the top left corner of the fragment?
How to put a back navigation listener on it?
Need to create an extra action in navigation.xml and use it?
Is there an action in the navcomponent that allows you to return to where you came from?

Answer 1

requireActivity().onBackPressed()

Answer 2

I worked a little with navigation, but nevertheless I see three options here:
1. Use the onBackPressed method by borrowing it from the activity, but for this the fragment that closes must be called with the addition to the stack.
2. Create an action to switch to the desired window.