Thanks for the reply.
I have already completely removed and reinstalled the Realtek USB Audio package multiple times, including removing the driver packages before reinstalling. The behavior is always the same.
I also compared my MAG X870E Tomahawk WiFi directly against my wife's MSI X870E Edge Ti WiFi. Both motherboards use the Realtek ALC4080 codec and the exact same MSI driver package.
The difference is that on the Edge Ti, Windows automatically enumerates the device with the hardware ID expected by the MSI extension INF, so the extension driver, software components, and Realtek Audio Console all install correctly.
On my Tomahawk, Windows initially installs a generic USB Audio driver. I have to manually force the Realtek USB Audio driver through Device Manager just to get the correct base driver installed. Even after doing that, the Realtek extension driver and software components never install, so the Audio Console remains mostly blank with no jack configuration or impedance options.
My Tomahawk enumerates as USB\VID_0BDA&PID_4080, while my wife's Edge Ti enumerates with the hardware ID expected by the MSI extension INF.
Since the same MSI driver package behaves differently on two MSI X870E motherboards using the same ALC4080 codec, I'm trying to determine whether the Tomahawk is exposing a different USB hardware ID than intended or whether the extension INF is missing support for the Tomahawk's enumeration.