Microsoft has released the optional KB5004296 Preview cumulative update for Windows 10 2004, Windows 10 20H2, and Windows 10 21H1. This update fixes Windows 10 gaming issues that have been plaguing users since March. Windows 10 users can install this update by going into Settings, clicking on Windows Update, and selecting ‘Check for Updates’ Microsoft also released today the KB 5004293 cumulative update preview for the Windows 10 1909 update. The update only contains bug fixes, performance enhancements, and improvements to existing features.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-gaming-issues-fixed-in-kb5004296-how-to-download/