Allow editors to edit the content of the privacy policy page

allow-privacy-page-edits.php

<?php
/**
 * Allow Privacy Policy Page Edits
 *
 * @package           AllowPrivacyPolicyPageEdits
 * @author            Bernhard Kau
 * @license           GPL-2.0-or-later
 *
 * @wordpress-plugin
 * Plugin Name:       Allow Privacy Policy Page Edits
 * Plugin URI:        https://gist.github.com/2ndkauboy/741683cf08072b9b37a395a078862e49
 * Description:       Allow editors to edit the content of the privacy policy page.
 * Version:           1.0.0
 * Requires at least: 4.9
 * Author:            Bernhard Kau
 * Author URI:        https://kau-boys.de
 * License:           GPL v2 or later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 */

/**
 * Adjusts the capabilities required to edit the privacy policy page.
 *
 * @param string[] $caps Primitive capabilities required of the user.
 * @param string $cap Capability being checked.
 *
 * @return string[] Primitive capabilities required of the user.
 */
function allow_privacy_policy_page_edits( $caps, $cap ) {
	if ( $cap !== 'manage_privacy_options' ) {
		return $caps;
	}

	return array_diff( $caps, [ 'manage_options' ] );
}
add_filter( 'map_meta_cap', 'allow_privacy_policy_page_edits', 10, 2 );