https://www.bleepingcomputer.com/news/microsoft/windows-10-kb5006738-released-with-fixes-for-printing-issues/

Microsoft has released the optional KB5006738 Preview cumulative update for Windows 10 2004, Windows 10 20H2, and Windows 10 21H1.

Microsoft says this update and a separate Windows Server preview update will fix all outstanding printing issues affecting users since they mitigated the PrintNightmare vulnerabilities.