I am not sure that it is deprecated or not, but they have not released a build of it since January 2019 (Build 8456). According to their release notes, it does not support Windows 11 (not that it won't work).
https://www.microsoft.com/en-us/download/details.aspx?id=54259
https://learn.microsoft.com/en-us/mem/configmgr/mdt/release-notes