[Razengan]

> all the phone-home that Catalina STILL does even with iCloud, Siri, analytics/crashes, Screen Time, iMessage/FaceTime, Location Services, ntp, App Store, and software update all disabled.

Do you have examples of what you mean?

[sneak]

I have a bunch of Little Snitch screenshots around here somewhere, but it is easy to reproduce: do a fresh install on spare machine or VM (opt out of all services like iCloud, Siri, Location, MAS, et c), install Little Snitch, and then disable the built-in Little Snitch silent allow rules for “system services/iCloud” or whatever it’s called. Reboot and observe.