Encrypt all DNS queries on all networks with the official NextDNS app for iOS.
On iOS 14, this app uses the new native Encrypted DNS setting.
You can set your configuration ID from your NextDNS account in the Settings to bring your blocking policy to your phone and get Analytics and Logs about your traffic.
If you do not have a NextDNS account yet, you can create one for free at https://nextdns.io.