The linked comment from 12 months ago is no longer relevant. These systems did need a modprobe option to disable the internal digital microphone array, similar to other systems with Sound Open Firmware issues, but most of the issues have been resolved
Issues for this model were first reported on the old forum in July 2020
Dell XPS 17 9700 Audio Issues - SOF / SoundWire - archived.forum.manjaro
And there was a recent issue with /usr/share/alsa/ucm2/sof-soundwire/soundwire.conf
Dell xps 9710 (2021) no audio
Users installing Manjaro with the latest ISO should only need to do one thing to get audio working:
Dell XPS 17 (9700) - ArchWiki
This laptop requires firmware from the sof-firmware package in order for the internal sound card to work
8086-06c8-1028-098f - Intel Comet Lake PCH cAVS | linux-hardware.org
For users who may have added modprobe options in the past I would suggest using this command to check for any ALSA options
grep snd /etc/modprobe.d/*.conf