Have you ever considered reading the law before attempting to discuss it?
You are clearly unable to cite a portion of the law which proves that Cloudflare counts as a service provider.
§ 1 Absatz 4 Nummer 5 Digitale-Dienste Gesetz: Im Sinne dieses Gesetzes ist oder sind „Diensteanbieter“ Anbieter digitaler Dienste;
That's just stating a tautology.