A plugin to extend the Simple Website Redirect plugin and prevent redirects from happening on the homepage.

simple-website-redirect-not-homepage.php

<?php

/*
 * Plugin Name:  Simple Website Redirect - Don't redirect homepage
 * Plugin URI:   https://gist.github.com/wpscholar/122e6132b7ff58cc67019339283ca25a
 * Description:  A plugin to extend the Simple Website Redirect plugin and prevent redirects from happening on the homepage.
 * Version:      1.0
 * Author:       Micah Wood
 * Author URI:   https://wpscholar.com
 * License:      GPL2
 * License URI:  https://www.gnu.org/licenses/gpl-2.0.html
 */

add_filter( 'simple_website_redirect_should_redirect', function ( $should_redirect, $url ) {
	if ( '/' === $url->path ) {
		$should_redirect = false;
	}

	return $should_redirect;
}, 10, 2 );