I'm in the same position.
I got an automatic WU on 13/3/21 updating the Conexant HD audio driver to V8.66.95.70. With files UCI64a231.dll at V7.231.4.0 and chdrt64.sys at V8.66.95.0.
So the 2 Conexant issues documented by Microsoft in
https://docs.microsoft.com/en-us/windows/release-health/status-windows-10-2004#417msgdesc seem to imply that I should be getting the 20H2 or 2004 updates but nothing yet.
Has anyone in this position received the update yet?
Also note that Microsoft hasn't updated the status of the 2 Conexant issues - the last update was in Jan. So they are still officially unresolved.
Hi, I was in the same situation : I got the driver updates then I had to wait ...
It took about 3 weeks after I got the fix to finally be able to upgrade to 20H2
Maybe this delay is a bit random, maybe it will be shorter for you ... or longer, but it will definitely come.
To be honest I don't really see the difference before and after.