Then Ira, says predictive typing...... I think I like that is some apps though..? not messages.
I agree
And: also how factor in this happens on my desktop with messages... which has nothing to do with IOS.
The Contacts address lookup API (Application Program Interface) is used in multiple Apple applications, including Messages, Mail, Phone, and FaceTime. (AN API is a functionality provided in the operating systems for use in any application that needs it). All of Apple's operating systems are platform specific variants of the same code base so that same API is present in MacOS, iOS, and iPadOS. If a change to the API is made for iOS it automatically appears in macOS and
vice versa because
it is the same identical code.