It worked on Windows 10 using the 11th gen Framework MB, or were you already using Windows 11 there?
This issue now regardless of the past is that drivers are missing. Or Windows is using Microsoft provided generic drivers and is not capturing that hardware correctly. I would go to Bose’s website and see if they have any specific software that you can download.
There is also a setting in Windows update that will allow it to search for updates to 3rd party and hardware. This is one way to get the correct driver automatically. I would prefer to manually find it though.
@Jean-Marc_Le_Roux Did you solve the problem with the microphone.
I have a Bose NC 700 and Windows 11 and the sound works great but not the microphone.