code: public function onAuthenticationSuccess(Request $request, TokenInterface $token): RedirectResponse
      {
          $this->user = $token->getUser();
  
          if (!$this->user instanceof User) {
              return $this->getRedirectResponse($request);
          }
  
          $this->user->lastLogin = $this->user->currentLogin;
          $this->user->currentLogin = time();
          $this->user->save();
  
          if (null !== $this->logger) {
              $this->logger->info(
                  sprintf('User "%s" has logged in', $this->user->username),
                  ['contao' => new ContaoContext(__METHOD__, ContaoContext::ACCESS, $this->user->username)]
              );
          }
  
          $this->triggerPostLoginHook();
  
          return $this->getRedirectResponse($request);
      }
docs: Redirects the authenticated user.