How do I set the default values for creating a new content type? This is a follow up to my question in Can I change the Display Settings by modifying the database? which was answered. Basically, I could not get to the 'display authoring and date information' checkbox because of a module installed. Running the command 'drush cedit node.type.article' as given in @4k4's answer allows me to change this setting. 

However, when a new content type is created, the type has display_submitted: true set meaning I have to go in and change it whenever a new content type is created, which I sometimes cannot do.

Is there a way to change the default settings so that any new content type has display_submitted: false by default?
For content or config entities you can set default values in a hook_ENTITY_TYPE_create():

use Drupal\node\Entity\NodeType;

/**
 * Implements hook_ENTITY_TYPE_create() for 'node_type'.
 */
function mymodule_node_type_create(NodeType $node_type) {
  $node_type-&gt;set('display_submitted', FALSE);
}