How to disable redirection to the node after node form submission
Thank you for the comment 4k4. Unfortunately, I didn't have enough time to find a proper solution so I just changed the redirection URL to the same content where the form is exposed.

function THEME_node_form_submit($form, FormStateInterface $form_state)  {
    $node_id = 1;
    $form_state-&gt;setRedirect('entity.node.canonical', array('node' =&gt; $node_id));
}


I'll try to find a more appropriate solution if I'll have some extra time before deadline :)