neowin[.]net/news/microsoft-releases-windows-11-build-22000282-kb5006746-with-ryzen-l3-cache-fix/
support.microsoft[.]com/en-us/topic/october-21-2021-kb5006746-os-build-22000-282-preview-03190705-0960-4ba4-9ee8-af40bef057d3
Part of a cumulative update preview, it contains quite a few fixes that might make it worth installing whether or not you're running a Ryzen CPU. While it took Windows Update quite a while to find it -- Microsoft servers might be getting slammed -- installed without issues in my VM [now on to my real copy of Win11].