facatalan the issue is not directly related with ZWO but the Linux kernel the device has.
The image they provide is based on kernel 4.x and the most up to date raspbian kernel release is 5.x, which is coming quite behind of the latest stable Linux kernel, 5.10.x
You can definitely try to do a kernel upgrade if you think it's something you can do. See the guide I shared in the other post. 🙂