if err != nil {
		return []corev1.Namespace{}, err
	}
	filtered := filterSystemNamespaces(nsList.Items, istioNamespace)
	filtered = slices.Filter(filtered, func(namespace corev1.Namespace) bool {
		return !ambient.InAmbient(&namespace)
	})
	sort.Slice(filtered, func(i, j int) bool {
		return filtered[i].Name < filtered[j].Name
	})
	return filtered, nil
}