Form Elements list is missing on the "Elements API page" of Drupal 11

Step to reproduce

Visit or this page (Elements API page of Drupal 11)
https://api.drupal.org/api/drupal/elements/11.x

Expected result

The page has the list of Form Elements the same as the "Elements API page of Drupal 8/9" has, see
https://api.drupal.org/api/drupal/elements/8.9.x
https://api.drupal.org/api/drupal/elements/9

Actual result

The page has information only about the "ajax" form element.

The situation is aggravated by the fact that the "Form Render Elements" page contains the following prompt:
"You can also get a relevance list on the the Elements API page.", see
https://www.drupal.org/docs/drupal-apis/form-api/form-render-elements →