Waaay back when I was on Windows 10 (haha) and using Realtek on-board audio I had absolutely no luck with the drivers from the ASUS or Realtek websites. I happened to find this package on the Techspot website and it worked perfect in Win 10.
Download Realtek HD Audio Codec Driver 2.81 for Windows Vista/7/8/10. OS support: Windows 7/8/10. Category: Audio and Multimedia
www.techspot.com
There is a v2.82, but it won't let you open or even give you the option to open the HD Audio Manager. So stick with v2.81. I have no reason to believe it wouldn't work in Win 11.
My "speaker" system is a Razer Tiamat 7.1 v2 headset, and despite reviewers claiming it has no bass, they didn't spend the time setting it up properly. It now uses a dedicated sound card. Here's a video I made showing how to set it up with the Realtek HD Audio Manager.
And FWIW, I think the audio sounds much better in Win 11 than it did in Win 10.
mega.nz