That's still something you have to install, or is pipewire/pulse included by default? If you have to install then it's the same as installing something like Audio Hijack on Mac.
No, Pulseaudio has been the standard audio system on Linux for most of the last decade. Pipewire is the standard one on some more cutting edge distros (i.e. Fedora). If your Linux install comes with a GUI, it will have one or the other.
