Please continue to monitor as I went through the same Intel driver update process.. it worked at first for about 3-4 hrs and then the mic just stopped for no apparent reason..
I am still of the opinion that this is a driver issue just trying to nail down which drivers and what versions is incredibly time consuming and difficult.. U suspect a combination or Realtek/Intel..
Anybody have the original Windows 11 drivers that Realtek and Intel first distributed for windows 11? perhaps try to install those versions and see if that works.
Paul.