I believe that PipeWire is really solid piece of software, but I couldn’t just let go of JACK just yet. JACK just works and it’s easy to modify important parameters like sample rate or buffer size. On PipeWire I still don’t know how to quite do that, I get lost in all those configuration files, but I will get it someday.

Also one more thing that might be niche, but it’s important for me is JACK timecode (for synching i.e. a DAW with video player) which PipeWire doesn’t support at all at the moment. Getting it work on PipeWire (converting JACK timecode to LTC or MTC) gets ugly pretty quickly. So I’m glad PipeWire allows to use it however I like it, either as JACK server or client.