Things like bluetooth support, audio for flatpak applications, and the new pulse server
were just added in the last month or so and there are issues with stability and audio
playback (look at the issue tracker [1]), for example HSP is still marked as WIP [2]. It
seems premature to commit to this change before the core features have been stabilized and
more testing has been done. Audio is an area where users really have no tolerance for it
misbehaving. Pushing a change like this too early can create a negative perception of the
project which is something we should try to avoid (within reason).
I also don't know of any current documentation on switching to and testing pipewire
with F33 or rawhide since the deprecation of pipewire-libpulse and the introduction of
pipewire-pulseaudio, as the old guide relies on libpulse [3]. I think at the very least
bluetooth support needs to mature, and pipewire-pulseaudio needs to be tested for 1 full
Fedora release cycle, so I would vote for delaying this until F35.
[1]
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues
[2]
https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/TODO
[3]
https://gitlab.freedesktop.org/pipewire/pipewire/-/snippets/1165