One thing I miss with 1.1.1.1 and WARP is DNS based ad blocking and filtering. NextDNS has handled that part quite well, allowing multiple profiles (so you can have different rules for different devices) to be setup in a single account. One can choose different filter lists and manage custom allow/deny lists too. The simpler filter lists are what one would choose with something like uBlock Origin. The NextDNS app on iOS is also just a DoH DNS provider and not a “VPN” app. This allows using another VPN app (or VPN service) while simultaneously relying on NextDNS for DNS.
I understand that Cloudflare wants users to use WARP+ for routing traffic too, but it would be useful to add more flexible DNS filtering capabilities (similar to NextDNS) and also provide for a non-VPN setup on iOS. As I understand it, the Cloudflare DNS service has a malware blocking/family mode and another (default) one that’s not.