I have had issues with my Asus chromebook C523NA afer installing windows i had issues with both the audio drivers and the touch drivers. I was able to install the touch drivers but the audio drivers is still an issue. I tried using the link your provided on your site. But creating a patreon account was an issue because the site was not accessible. I would appreciate if i can get help on this, Thanks.
Sorry I’m not able to help. I’m trying to figure something very similar out and am commenting to get a notification if someone answers you with info that may shed light on my issue as well.