There is an updated pull request by sirn against master on the void-packages repository

https://github.com/sirn/void-packages pipewire-update
https://github.com/void-linux/void-packages/pull/20413

pipewire: update to 0.3.2
This PR updates pipewire to 0.3.2 as well as update packages that depends on it (xdg-desktop-portal to 1.7.1 and bump revision of xdg-desktop-portal-kde to force rebuild with pipewire-0.3)

xdg-desktop-portal 1.7.1 has few changes to xdg-document-portal and requires a patch to build on musl (`O_FSYNC` being undefined, see [musl's FFSYNC patch](https://git.musl-libc.org/cgit/musl/commit/?id=c1f4ed150137d793c9d07356305a89e8785e7e02)). 

Edit: on a second thought, I'm now providing `alsa-pipewire` (installs `libasound_module_pcm_pipewire.so`, so not much to configure) as well as `libjack-pipewire` and `libpulseaudio-pipewire` but still not sure what would be the best way to provide an option to replace `libpulse.so`/`libjack.so` with them. 

A patch file from https://github.com/void-linux/void-packages/pull/20413.patch is attached