Thanks for the fast response. I finally managed to get the 3.5 headphone jack working!
Using this script https://github.com/black-dragon74/ALCPlugFix-Swift + adding boot-arg alcverbs=1
Dell Precision 7720
OpenCore 0.7
ALC295
Layout-id = 77
Sound is working fine from the laptop speakers, but not from the headphone jack. I can hear some sound when I made the volume low but it's not clear. When I increase the volume it will stop.
It recognize the headphone when I plug it in. I am on the AppleAlC 1.6.1