The Drupal 7 version of the Field Group module includes a "Div" group type, which includes a "Description" field.
It looks like this type has been removed from the Drupal 8 version of the module. I can use the "HTML element" type to get similar functionality – but that type lacks the "Description" field.
Has the "Div" type, in fact, been removed?
If so: is there some other way to put arbitrary HTML in certain places on a node create form?