https://www.bleepingcomputer.com/news/microsoft/windows-10-cumulative-update-preview-kb4586853-released/

​Microsoft has released the optional KB4586853 non-security cumulative update preview for Windows 10 versions 2004 and 20H2, with USB 3.0 and gaming fixes.

As this is a preview update for December 10th's Patch Tuesday, it is considered optional and will not be installed automatically by Windows 10. To install the KB4586853 update, open Windows Update and perform a manual 'Check for updates.'