Installation of Leap 15.5 or Tumbleweed on a machine with an AMD APU on an ASUS
Prime B550-Plus (uses Realtek ALC 887 for sound) results in no sound from the
motherboard.  This is discussed in a thread on openSuSE forums: English
language, Hardware forum, "5700G+ALC887" thread title.  This has been explored
with aplay -l, inxi -Axx, dmesg | grep snd_hda, lsmod and modprobe.  It is
apparently a matter of detection of the motherboard sound "card" in the
presence of the CPU's integrated sound "card".

This is apparently a bug in the kernel, not openSuSE, since installation of
Linux Mint on the same hardware causes exactly the same problem, including
identical output from aplay -l, inxi -Axx and dmesg | grep snd_hda.