Events and Inheritance in cakephp3

AppController-fixed.php

<?php
namespace App\Controller;

class AppController extends \Cake\Controller\Controller
{
  public function initialize()
  {
    parent::initialize();
    /*
    * Can't listen on the "initialize" event here obviously, "startup" and all later ones do work though.
    * If "initialize" is needed, overwrite the constructor and attach the the global EventManager class instead.
    * Make sure to use a unique function name, as a generic _beforeRender would likely be overwritten by
    * a subclasses implementation without beeing, further on, easyly, noticeable...
    */
    $this->eventManager()->on('beforeRender', [$this, '_globalBeforeRender']);
  }
  
  public function _globalBeforeRender(\Cake\Event\Event $event)
  {
    $this->set('global', true);
  }
}

AppController.php

<?php
namespace App\Controller;

class AppController extends \Cake\Controller\Controller
{
  public function _globalBeforeRender(\Cake\Event\Event $event)
  {
    $this->set('global', true);
  }

  public function implementedEvents()
  {
    return parent::implementedEvents() + ['beforeRender' => '_globalBeforeRender'];
  }
}

test_events.ctp

<?php

debug([$global, $users]);
/*
* [
*   null,
*   true
* ]
*
* I want both to run, like:
* [
*   true,
*   true
* ]
*
* Clearly the UsersController::implementedEvents overwrites the beforeRender key from the parent class...
* The desired result can be achieved by adding parent::_globalBeforeRender($event); to line 10 of UsersController.php
* which would need insights into what events are bound where, which i not desireable, how to do it correctly?
* Use the EventManager directly to add another event? - Maybe rather in the AppController though,
* not to confuse others using the App?
*/

UsersController.php

<?php
namespace App\Controller;

class UsersController extends AppController
{
  public function testEvents() {
  }
  
  public function _beforeRender(\Cake\Event\Event $event) {
    $this->set('users', true);
  }

  public function implementedEvents()
  {
    return parent::implementedEvents() + ['beforeRender' => '_beforeRender'];
  }
}