In fact, I meanwhile changed the driver via Windows deinstall - and had
sound issues with the new and latest one after installing that one. I then had used DDU to deinstall that one, and installed one version number older. That way it worked again, and I had the second-newest driver, which was good enough for my need.
I tend to change drivers only when need arises, never just because a new driver is out.
Late? Yes, but thanks nevertheless!