/**
* Implements hook_theme_suggestions_HOOK_alter().
*/
function MYMODULE_theme_suggestions_form_element_alter(array &$suggestions, array $variables, $hook) {
 if ($variables['element']['#name'] === 'form3_1_pane[organizations]') {
   $suggestions

MYMODULE.settings:
 type: config_object
 label: 'LABEL'
 mapping:
   forums:
     type: sequence
     label: 'Forums'
     sequence:
       type:

Needs minimum 2 subtabs! 

custom.links.task.yml:

drush ev '$updates = \Drupal::keyValue("post_update")->get("existing_updates"); \Drupal::keyValue("post_update")->set("existing_updates", array_diff_key($updates, array_filter($updates, function($v){return FALSE !== strstr($v,"MY_MODULE_post_update");})));'

/**
* Implements hook_ENTITY_TYPE_view().
*/
function MYMODULE_user_view(array &$build, UserInterface $account, EntityViewDisplayInterface $display) {
 if ($component = $display->getComponent('dating')) {
   $node = Node::load('67');
   $view_builder = \Drupal::entityTypeManage

$roles = Role::loadMultiple($user->getRoles());

foreach ($roles as $role) {
 $label = $role->label();
}

/**
* Implements hook_views_post_render().
*/
function MYMODULE_views_post_render(ViewExecutable $view) {
 if ($view->element['#view_id'] === 'user_blog') {
   $title = 'test';
   $view->setTitle($title);
 }
}

Use

// eslint-disable-next-line

use Drupal\Core\StreamWrapper\StreamWrapperManager;

/**
 * The Stream Wrapper Manager.
 */
protected StreamWrapperManager $streamWrapperManager;

/**
 * {@inheritdoc}
 */
public 

Call to deprecated method renderPlain() of class Drupal\Core\Render\Renderer in drupal:10.3.0 and is removed from drupal:12.0.0.