(no i haven’t used the Audio script)
running Arch Linux on an Asus Chromebook c523n (babytiger) via UEFI Full Firmware and sound just doesn’t play through anything except the built-in speakers. there’s like 3 other audio i/o devices for some reason and literally none of them play anything. plugging in headphones via AUX just adds another i/o device that plays nothing 
You can’t say you didn’t run the thing we tell you to run and then complain that you have issues.
it caused issues when i installed it WITH the force AVS flag on (nothing was playing at all).
ran it after awhile and it wasn’t working tho (it’s working now though… even though the chrultrabook wiki said it doesn’t.) i lost track of this post for awhile and didn’t get to edit it, sorry 