Comment # 1 on bug 1227182 from Takashi Iwai

The upstream and Leap 15.6 kernel had the quirk entry for HP OMEN 16-n0xxx
(8A42) in the commit ee4281de4d60288b9c802bb0906061ec355ecef2, and it's
               .matches = {
                       DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
                       DMI_MATCH(DMI_BOARD_NAME, "8A42"),
               }

I suppose yours doesn't match, even though it's the same name HP OMEN 16-n0xxx?

Could you give the output 
  grep -Hr . /sys/class/dmi/id
??