Don't get me wrong, I personally am totally in favor of Pipewire. The GP was making it sound like it's going to be some kind of panacea though, and I don't think that is going to happen. Pro audio is hard. It takes a long time to bring a project like this up to speed (I know because I've been waiting patiently for the video streaming stuff to stabilize). Pipewire is a good improvement for users but it doesn't bring any major features that a DAW is going to really want. And as Paul said, eventually as a DAW grows and becomes more monolithic you're going to get away from even wanting an audio server at all so you can have the lowest latency possible.
BTW from my perspective there already is a major project driving a revival of open source audio, and that project is called JUCE [0].
[0] https://github.com/WeAreROLI/JUCE