Is there a better way to get the email of the one and only Network / Super Admin?

Version 1

private function get_super_admin_email()
{
  $all_super_admin_logins = get_super_admins();
  $first_super_admin_only = get_user_by('login', $all_super_admin_logins[0]);
  $super_admin = get_userdata($first_super_admin_only->ID);
  return $super_admin->user_email;
}

Version 2

private function get_super_admin_email()
{
  $all_super_admin_logins = get_super_admins();
  $first_super_admin_only = get_user_by('login', $all_super_admin_logins[0]);
  return $first_super_admin_only->user_email;
}