I just noticed something from your original post on that other thread:
There is a pin fix-up available for the ASUS ROG Strix G15 and it also has a ALC285 chip.[1] I bet that pin out fix-up would work on your PC as well.
SND_PCI_QUIRK(0x1043, 0x1c92, "ASUS ROG Strix G15", ALC285_FIXUP_ASUS_G533Z_PINS),
You might try creating a conf file under /etc/modprobe.d with the following lines to get your PC to apply that pin out fix-up.
options snd-intel-dspcfg dsp_driver=3
options snd_sof_intel_hda_generic hda_model=1043:1c92
After you reboot, you can confirm that the setting is being applied with the following command:
cat /sys/module/snd_sof_intel_hda_generic/parameters/hda_model