theverge[.]com/2023/8/11/23828311/microsoft-shuts-down-cortana-windows-11
Microsoft has shut down its Cortana app for Windows 11. A new update is rolling out for Cortana that simply disables the digital assistant three years after Microsoft also discontinued its Cortana apps for iOS and Android.If you attempt to launch Cortana on Windows 11 you’ll now be met with a notice about how the app is deprecated and a link to a support article on the change. Microsoft is now planning to end support for Cortana in Teams mobile, Microsoft Teams Display, and Microsoft Teams Rooms “in the fall of 2023.” Surprisingly, Cortana inside Outlook mobile “will continue to be available,” according to Microsoft.
That doesn't mean that you can easily uninstall it, yet... uninstalling Cortana from Settings -> Apps has only just shown up in the latest Windows Canary Insider builds.