Change post_title and post_content Field Labels on ACF Form

custom-title-content-labels-acf-form.php

<?php
/**
 * https://www.advancedcustomfields.com/resources/acf_form/
 *
 * Modify ACF Form Post Title Field Label
 * @ default  'Post Title'
 */
function acf_form_post_title_label( $field ) {
	if ( is_page( 5 ) ) { // form on page ID 5.
		$field['label'] = 'Product Name';
	}
	return $field;
}
add_filter( 'acf/load_field/name=_post_title', 'acf_form_post_title_label' );

/**
 * Modify ACF Form Post Content Field Label
 * @ default  'Post Content'
 */
function acf_form_post_content_label( $field ) {
	if ( is_page( 5 ) ) { // form on page ID 5.
		$field['label'] = 'Product Description';
	}
	return $field;
}
add_filter( 'acf/load_field/name=_post_content', 'acf_form_post_content_label' );