I installed Windows 11 on an Intel NUC about 3 months ago. MY problem was that when the computer went to sleep and then woke up, I would get the "no audio device installed" message. None of the usual driver update methods mentioned here worked as it always said I had the latest audio driver for HD display audio. Monitor is an HP S340c. No monitor settings helped either. Turns out that the NUC has Iris Xe Graphics. And after going down that rabbit hole I found an updated driver that came out 7/1/24 that solved the issue:
https://www.intel.com/content/www/us/en/search.html?ws=text#sort=relevancy&layout=table
Here is the description: