With composer/installers in effect, Drupal packages are installed to their own specified paths. However the default configs for Drupal packages don't include custom modules. We'll need to add one: If ...

Download and enable this module, plus CiviCRM, Webform, and Options Element. Create a new webform (or go to edit an existing one). Click on the CiviCRM tab. Enable the fields you like, and optionally ...