There are multiple ways to change URL in WordPress.
Here’s one via wp-config.php.
define( 'WP_HOME', 'http://example.com' );
define( 'WP_SITEURL', 'http://example.com' );
If you have a redirect in Apache, comment it out.
#Redirect permanent / https://yourdomain.com/
This is by far the easiest way to change URL in WordPress.