What do people even expect from these intelligence services? Apple is always said to have failed, yet I've seen nothing in Windows that I'd actually want to use WRT to intelligence services.

Siri being better at free form requests for actions and doing internet/knowledge searches is about all I can think of. But also, I use Kagi for that, and unless Siri has a pluggable backend for search I'm not sure being forced to use only Apple's search, if it ever exists, is a great design.