Astra Related Post Title Tag

// user can use this astra_related_posts_title filter & update the structure, with shortcode
add_filter( 'astra_related_posts_title', 'update_related_posts_title_markup', 10, 1 );
function update_related_posts_title_markup( $markup ) {
    $markup = '<div class="ast-related-posts-title-section">';
        $markup = '<h2 class="ast-related-posts-title">'; // Remove H2 heading if not required.
            $markup .= do_shortcode( '[My_shortcode]' );
        $markup .= '</h2>'; // Remove H2 heading if not required.
    $markup .= '</div>';
    return $markup;
}