Display custom user profile field as name in articles I would like to display the custom user profile field name as the author's name in articles, instead of the user's username. How can I do this without modifying code of my template or Drupal itself? 

I saw solutions for Drupal 7 but I'm using Drupal 8. I found custom modules for Drupal 7 or earlier and code modification ways. Both seems wrong to me because the mentioned modules aren't updated nor it feels correctly to me to change code to achieve this quite basic task.
You can use the Realname module to override the display name with the values of one or more fields: 


  The RealName module allows the administrator to choose fields from the
  user profile that will be used to add a "real name" element (method)
  to a user object. Hook_user is used to automatically add this to any
  user object that is loaded. It will also optionally set all nodes and
  comments to show this name.