Hi, i'm wondering if there is an error on this documentation page :
https://symfony.com/doc/current/controller.html#the-base-controller-classes-services

What's the difference between Controller or AbstractController? Not much: both are identical, except that AbstractController is more restrictive: it does not allow you to access services directly via $this->get() or $this->container->get().

Actually, both Controller and AbstractController use the ControllerTrait, which implements the protected method get(string $id) and has the protected $container property. So $this->get() and $this->container->get() are usable in a controller extending AbstractController as well as Controller.