hello my friend. its a bit late to answer maybe. this could work but only if you are willing to switch back to windows 10. so if you dont really really need windows 11 i suggest to go back to 10 and your problem is solved. otherwise try to contact chuwi for win11 drivers.
to solve your problem follow these steps. I did like this exactly and my laptop works just fine with sound since then.
look at this thread—>Chuwi Gemibook Pro - no sound
I wish you luck!