Microsoft has officially released the final build of Windows 10 2004 to Insiders in the Release preview ring and plans on releasing it to everyone in May as the “May 2020 Update”” Microsoft states that there are known issues with Windows Mixed Reality on Windows 2004 and that users of this technology should hold off on installing the update until a fix is released. Microsoft is offering businesses who are testing the May 2020 Update in their organization free support for severe issues that are discovered. Microsoft also states that Mixed Reality users should not install the update.”
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-2004-almost-here-final-build-released-to-insiders/