I’ve been using pipewire for several months, as well. So far, I haven’t had any problems, to knock on wood.
Switching to it from pulseaudio has been trivial, I just installed the following two packages:
gst-plugin-pipewire
pipewire-pulse
I don’t use bluetooth, though.
Why didn’t you use the Magic SysRQ button? Cutting the power to your computer is too savage, and can cause filesystem corruption. I know you are aware of it, but in case somebody else isn’t: