Telemetry makes sense but I mind individual apps making any network connections and sending/receiving whatever is not essential to solving the actual task I use

Telemetry makes sense but I mind individual apps making any network connections and sending/receiving whatever is not essential to solving the actual task I use them for, let alone send data about me in a black-box manner. There should be a centralized system service apps would pass telemetry to for it to send it further and all the data should be in human-readable format.