/**
 * Implements template_preprocess_node.
 */
function MYTHEME/MYMODULE_preprocess_node(&$variables) {

  // Check for node type.
  if ($variables['node']->getType() == 'artist') {

    $current_path  = Drupal::service('path.current')->getPath();
    $current_alias = Drupal::service('path.alias_manager')->getAliasByPath($current_path);
    $alias_args    = explode('/', $current_alias);

    // 1. Unset content per path alias.
    if ((isset($alias_args[0]) && $alias_args[0] == 'details')
      && (isset($alias_args[1]) && $alias_args[1] == 'michael-jackson')) {
      unset($variables['content']);
    }

    // 2. Or unset content by node ID.
    if ($variables['node']->id() == '123') {
      unset($variables['content']);
    }
  }
}