How to display Webform label Above the field instead of Inline in Drupal 8?
Ben, Let me know you webform version I can guide where you can get that option.

As of now I am using webform version 8.x-5.0-beta15 &amp; it seems your requirement is available in this module. Below are steps for same


Choose Any webform. Click on edit of that webform you will see list of fields available in that webform.
Select any of the field and click on edit option provided. You will see one popup is opened.
On that popup if you scroll down little you will find your required option. Please refer attached screenshot.




Hope this helps.. :)