Pipewire is newer and emulates PulseAudio so that it can be used as a drop-in replacement. There’s literally a command called pipewire-pulse related to this.
It makes me wonder if they really have both installed or are mistaking Pipewire’s emulation for an active PulseAudio installation, and so it’s just Pipewire that’s acting up.
I’d say reboot, but being in space might be one of those times where that’s a non-starter. In which case, they’re going to have to get their hands dirty unpicking system hooks and trying to reattach them all again as and when Pipewire’s working again, assuming it doesn’t do that automatically.
I never had a problem with either Pipewire or real PulseAudio back when that was current. I had motherboard sound physically pop, requiring the purchase of a separate sound card, but never a driver issue, so I can’t even imagine what might be going on.



Is this canon? They’re probably not having kids outside their species because that (probably) wouldn’t work (given the apparent lack of weird hybrids), but just plain copulation? Heck, we see that in the real world occasionally.
As for what the carnivores are eating, two possibilities present themselves: 1) The Disney Goofy / Pluto paradox is resolved by realising that one is more evolved than the other, and while they’re related species, they’re not the same species. The Zootopia world may have less evolved equivalents of the multiple sapient species, and they may be OK with eating them. 2) You don’t see any humans in their world. Does that mean they’re not there? Longpig is said to be delicious…