OpenSUSE's bluetooth and audio stack will often choose a really poor codec
(mono, audibly low bitrate) with my Anker Soundcore Life Q30 headphones when on
different distribution it was fine. Also, randomly shooting down pulseaudio and
bluetoothd and disconnecting and reconnecting will fix it at some point, but
possibly lead to other issues down the line like things no longer properly
reconnecting on their own, it's a total mess. Since this worked on a different
Linux distribution with the same hardware, this seems to be some sort of
problem specifically with how the bluetooth and audio stack is configured on
OpenSUSE and not e.g. a hardware or radio interference problem. I'm seeing this
on the GNOME desktop, which I also used previously with the other distribution.
Also, switching through all codec choices in pavucontrol doesn't fix it, which
makes this even more annoying.