Okay, here's the dope.
AMD driver support for HAGS is in early beta. So, unless you are a beta tester, you will not see 20.5.1 BETA by navigating through 'Drivers and Support'...only 20.5.1 Optional and 20.4.2 WHQL.
That's a Microsoft decision as they haven't logged enough time in the insider builds to allow them to release it to the public. They did fix a number of issues and release the new bug reporting tool, something which is a decade overdue, so perhaps bugs will start being attended to without Reddit having to have a meltdown first.