Login, Backend routes and local files (like wp-login.php) are always available to prevent a lockout.
Warning: The routing overrules permalinks and works like a whitelist. Only correct entered routes will go through. You should test the routing before using on production environments.
Also delete all your page caches after enabling to prevent unwanted routing behavior.
#01 /#02 /*#03 page/*#04 category/*/page/*#05 menu/**#06 sample-page
Ideas, feedback, bug reports or recommendations?