There have been audio issues on some systems after a major Windows 10 update gets installed. I had such a problem going from 1709 to 1803, if I recall correctly. I was able to fix it by using a driver package from the Microsoft Update Catalog. It requires downloading, unpacking, and then updating the driver through Device Manager if you're comfortable doing that. The package is
here (version 6.0.8791.1) but like I said before, I'm not 100 percent sure it's compatible with your device. If it's not, the Device Manager installation process should just give a message along the lines of "Windows has determined that the best driver for this device is already installed." I used 7-Zip to unpack the cab file. I'd imagine other tools can also unpack cabs but I haven't tried any others.
edit:
This video shows the process but the links it lists are outdated.