Upstream MR has been closed by Dylan 2 months ago, and this feature is
already present in pipewire. We are doing considerably amount of work to
get Pipewire production-ready in postmarketOS, including features to let
users choose. Given HFP support is actually a nice-to-have feature, but
not a great requirement, our fork is outdated (aports is on 17.0), and that
the upstream MR has been dropped and is not being worked on, it might be
time to drop this.