Comment # 26 on bug 1183839 from Bruno Friedmann

(In reply to Takashi Iwai from comment #25)
> Do you still face the problem with latest upstream?  i.e. the sound module
> is still included in initrd?  If yes, we need to track down the cause.

Hi Takashi, I've just done a new test this morning with
kernel 5.12.10-1-default and I still have some snd modules added to the initrd

lsinitrd | grep snd
-rw-r--r--   1 root     root         7908 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd-hwdep.ko.xz
-rw-r--r--   1 root     root        66888 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd-pcm.ko.xz
-rw-r--r--   1 root     root        18416 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd-rawmidi.ko.xz
-rw-r--r--   1 root     root         5228 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd-seq-device.ko.xz
-rw-r--r--   1 root     root        19364 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd-timer.ko.xz
-rw-r--r--   1 root     root        42836 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/core/snd.ko.xz
-rw-r--r--   1 root     root        42912 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/hda/snd-hda-core.ko.xz
-rw-r--r--   1 root     root         5680 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/hda/snd-intel-dspcfg.ko.xz
-rw-r--r--   1 root     root         3336 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/hda/snd-intel-sdw-acpi.ko.xz
-rw-r--r--   1 root     root        72856 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/pci/hda/snd-hda-codec.ko.xz
-rw-r--r--   1 root     root        27516 Jun 15 18:32
usr/lib/modules/5.12.10-1-default/kernel/sound/pci/hda/snd-hda-intel.ko.xz

I'm normally not too much annoyed actually as I used to use 
a dracut configuration which force it to avoid adding them

/etc/dracut.conf.d/80-no-sound-modules.conf
omit_drivers+=" snd_hda_intel snd_seq_device snd_hwdep snd_hda_intel
snd_usb_audio snd_usbmidi_lib snd_hda_codec snd_timer snd_compress snd_soc_core
snd_pcm snd_rawmidi snd_intel_dspcfg soundwire_intel soundwire_intel
snd_compress snd_soc_core snd_hda_core snd_pcm_dmaengine snd_soc_core
snd_compress snd_seq_device snd_hwdep snd_timer snd_pcm snd_timer snd
soundcore_bus soundcore soundwire_generic_allocation soundwire_bus
soundwire_cadence "

As extra modules I only have nvidia, and virtualbox (all coming from openSUSE
official rpm).