Is K8S still eating so many CPU cycles while idle? Last year I checked and every physical machine in a K8S cluster was burning CPU at 20-30% - with zero payloa

Is K8S still eating so many CPU cycles while idle? Last year I checked and every physical machine in a K8S cluster was burning CPU at 20-30% - with zero payload, just to keep itself up! Don´t you feel that this is totally inacceptable in a world with well understood climate challenges?