hmmm, not sure about… reinstalling changes normaly nothing at the codebase itself.
The main “bad-boy” was usually the nahimic - service which have to be stopped/deactivated. Beside of some first windows 11 issues, which should fixed in meanwhile , I have no other ideas. Important is to know, that these sound-tools are installed automaticly and some users not noticed it ( in special these Asus stuff, see my experiance ) .
May be some other users report the similar windows audio issue since Su7 as yours, then we can find more possible reasons.