Recently I had the similar issue after connecting MS USB HD camera with mic, had to disable all other micks in hardware and reinstall properly drivers.
Thank you a million, finally there is an Echo cancelling in Realtec UAD panel and (I hate headsets) there is no sound from my speakers in my mic recordings.
ROG STRIX Z590-A GAMING Wi-Fi
https://rog.asus.com/motherboards/rog-strix/rog-strix-z590-a-gaming-wifi-model/
Which driver for Windows 10
Thank you a million for advice, the drivers 6.3.9600.2342 I have now, don't work properly in echo reduction and selection of sound with background sound still...