When Windows 10 was released, the NT version was 10.0 to have the same NT version as the Windows version. Now we are with Windows 11 and the NT version is still 10.0. I think it would be great to see the NT version change to 11.0 because some websites and apps where Feedback is sent report the NT version of Windows like Chromium Bugs and if a not-techie user goes there, then they may get confused about it.
As you are aware Windows 11 is under testing and the team focus more on reliability and compatibility of the system and such issues will fix in future. However, glad you share it through the Feedback Hub app and the Windows team will look into it.