Hi,
Further digging in to this audio issue on win11 enhanced session, it looks like we got to do something VERY SIMPLE ..LOL
Just follow this https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/enhanced-session-mode and I bet it will work. You got to set this up on your VM logged in as basic session and then shutdown the VM, restart it and you can have all the audio played out of VM. So SIMPLE..