You can operate a full resolver without Cloudflare or any other resolver DNS server. Every time you do a complete recursive resolution on the DNS names yourself

You can operate a full resolver without Cloudflare or any other resolver DNS server. Every time you do a complete recursive resolution on the DNS names yourself locally and then only the DNS servers of the service you are using are going to know that you visited their service (and the adversary eavesdropping on the network between you and the service).