routes

$user = \Drupal::routeMatch()->getParameter('user');

Add this code to route

options:
  no_cache: TRUE

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * The current route match.
 *
 * @var \Drupal\Core\Routing\RouteMatchInterface
 */
protected $routeMatch;

/**
 * Constructs a PrivatemsgMessageForm object.
 *
 * @param \Drupal\Core\En

/**
* Implements hook_preprocess_HOOK().
*/
function EXAMPLE_preprocess_page(&$variables) {
 $route_name = \Drupal::routeMatch()->getRouteName();
 if ($route_name == 'entity.user.canonical') {
   $current_user = \Drupal::currentUser();
   $roles = $current_user->getRoles();
   if

$route_name = \Drupal::routeMatch()->getRouteName();