News Microsoft Drops Support for Problematic Windows 10 October 2018 Up

It won't. And this article is rather pointless, Microsoft drops support for all branches older than 1.5 years, which 1809 will be when 2003 comes out, just like they dropped 1803, 1709,1703 etc
Windows Server (Desktop Experience) uses the LTSR branch which is different in terms of much longer support windows.