Comment # 1 on bug 1205136 from Andreas Nordal

Solution that works for me: Tumbleweed.

Leap 15.4 seems to be in a limbo state between pulseaudio and pipewire:
* Some package (plasma-wayland) pulled in pipewire.
* I was running the "pipewire" process, but not "pipewire-pulse". I'm not sure
if that's a working configuration.
* Installing "pipewire-pulse required uninstalling pulseaudio and have no sound
at all (tried re-pairing headset; wouldn't even pair).

I wanted to try Tumbleweed, because I had past experience that it would support
the built-in audio chip (for the headphone jack, speakers, built-in microphone
and HDMI audio). It turns out that just distro-updating (zypper dup) was not
enough, but after a fresh install of Tumbleweed, that stuff got working.

On Tumbleweed, I see that both "pipewire" and "pipewire-pulse" are running
processes, but not "pulseaudio". To my pleasure, that seems to be a working
configuration as far as Teams & bluetooth is concerned.