I think it was maybe working for me in v1.12 and v1.13, but definitely not in v1.14 and there’s a few mentions in the most recent release feedback thread:
The workaround is to go into the Bluetooth prefs on the phone and switch off the Qualcomm ptX profile.
BTW, I’m using the FairBuds XL, which Linux is happy to speak aptX to. However the headphones support relatively smooth switching between two connected sources, and this functionality is now broken due to the workaround. It used to switch fine between sources fine, but now when I start off listening on Linux (aptX), pause there, and then connect from my phone, the audio stream is silent until I disconnect on the phone and then reconnect which (I assume) causes the headphones to expect “media audio” instead.
There was a Fairbuds XL firmware release that I applied during /e/ v1.13, but since aptX works from Linux to them after applying it I doubt it’s the cause of the issue.