Change the default "Create new account" title on the User registration page I would like the change the default title (and probably also the meta title) of the User registration page, currently "Create new account".

I tried the Static and Dynamic page title method described here, as well as a couple of other suggestions, but none of them worked...

Anyone?  I added a print screen of the route (registration_link.register), the URL is user/register.
You can add the following two hooks to your theme's *.theme file or your module's *.module file. The first to alter the title that's displayed in the page title block. The second to alter the meta title.

/**
 * Implements hook_preprocess_HOOK().
 */
function MYTHEME/MYMODULE_preprocess_page_title(&amp;$variables) {

  if (\Drupal::routeMatch()-&gt;getRouteName() == 'user.register') {

    $variables['title'] = t('New Title');
  }
}

/**
 * Implements hook_preprocess_HOOK().
 */
function MYTHEME/MYMODULE_preprocess_html(&amp;$variables) {

  if (\Drupal::routeMatch()-&gt;getRouteName() == 'user.register') {

    $variables['head_title']['title'] = t('New Title');
  }
}