What controls should a Linux earbud companion support next?

I’m preparing the first Product Hunt launch of EarA, an open-source GTK4 companion for compatible Nothing and CMF earbuds on Linux.

The current release covers battery status, ANC/transparency, EQ and custom EQ, bass level, gestures, codec/profile switching, Find My Earbuds, and ear-tip fit testing. It also uses SDP discovery so newer models are not tied to one hard-coded Bluetooth control channel.

For people who use wireless earbuds on Linux: what is still missing from your desktop experience? Multipoint visibility, wider device support, firmware management, per-app audio routing, or something else?

I’m also looking for redacted hardware reports from CMF Buds 2 Plus owners, since that model is still provisional in the support matrix.