CiviCRM 5.23 changes how resources are loaded so changing the resourceUrl is not enough
The quick fix as suggested at https://lab.civicrm.org/dev/drupal/issues/106 is to put the below in civicrm.settings.php. That worked for me. There is more discussion of other possibilities in the ticket since people upgrading an existing install will need to either be informed, have it done automatically, or some other type of solution(?)
$civicrm_paths['civicrm.root']['url'] = '/libraries/civicrm/';
$civicrm_paths['civicrm.packages']['url'] = '/libraries/civicrm/packages/';