One thing has been holding me back from buying Bluetooth headphones: my Linux laptop doesn’t support Bluetooth APTX. Later Sony open-sourced LDAC, but those open-source devs are still too busy arguing about whether the code is “orthodox” to actually ship anything. Progress on APTX and LDAC support under Linux has been ongoing — some of it reverse-engineered, some of it code integrations — but none of it got merged upstream, because they’re still bickering. And at this point APTX has already been reverse-engineered, the LDAC source has been released, and it’s even been merged into ALSA, while PulseAudio still hasn’t moved. That makes no sense. So finally someone from China took action. Respect.