I tried out Pipewire. I have an ASUS Z170 (older) motherboard with the stock sound card circuit topology. Pipewire turned out to be a disaster, leaving me with very buggy sound. Pipewire also added about eight volume sliders named "Pro-Audio" within the Audio Volume applet in Plasma-KDE that did nothing. It made access to the digital audio stream from my NVIDIA GTX780Ti card* on HDMI#3 impossible for my Asus monitor to play low-level audio (non-critical listening audio) through the monitors cheap stock speakers.
I tried to remove Pipewire, but good luck with that. It gets so bogged down with dependencies that no command I know of will remove it from the system. It "wraps itself tight" with files that are essential to so many other applications and would take hours to clean out. Since I have my /home directory on a 12 Terabyte WD Enterprise Helio drive, I just wiped by nvme boot drive and reinstalled Arch/Plasma to get rid of it and then added other features over time to restore my system.
I get the feeling that once Pipewire is executed on newer electronics... the latest motherboards with more esoteric sound card circuitry, it will be quite good. I'd like to learn more about it before I dare to use it.