This hook can be used for adding extra fields/HTML in the Inline Feedback Form. This hook is being dispatched once for each post, and if you want to add different fields for each Inline Feedback Form you should use CSS or JS codes as well.
Changelog
Added in version 7.0.8
Parameters
1. $html (type: string) – the HTML that will be added at the end of the feedback form
2. $postId (type: int) – the post ID where the form is being used
Usage
add_filter("wpdiscuz_after_feedback_form_fields", function ($html, $postId) { return $html . "Custom Text"; }, 10, 2);