You'll be able to send and receive SMS texts from Microsoft Teams (though in theory you could also use My Phone for that).
The built-in Chat functionality in Windows 11 is now becoming a free part of Microsoft Teams, which is pinned to the taskbar by default. So after all that, 23H2 is focused on some changes to Teams and application management. The scope of features is indeed limited, partially because the company isssued a fairly large update at the end of September, pushing its Copilot AI features live, as well as AI features in Paint and changes to OneDrive, Photos and Windows Backup. 'We are providing a limited scope of new features and functionality delivered via a familiar, fast, and reliable update experience,' writes John Cable, Microsoft's vice president of Windows servicing and delivery. Microsoft is rolling out Windows 11 Version 23H2 today, which it is describing as a 'scoped, cumulative release.'