The "solution" other vendors take is to maintain the high quality bluetooth audio output to your headphones while using your laptop's microphone as input. They

The "solution" other vendors take is to maintain the high quality bluetooth audio output to your headphones while using your laptop's microphone as input. They basically don't use your headset's mic in order to keep your headset in A2DP mode for high quality audio. You can also easily configure this in PulseAudio Volume Control. You can't work around the fundamental limitations of Bluetooth protocols like A2DP without cheating and using another microphone somewhere else. You can't use the headset mic when receiving high quality A2DP audio, ever, no matter how hard you try. It is a limitation of the Bluetooth standard. When you switch the device into headset mode the quality turns to potato because it uses bidirectional audio codecs from the stone age in HFP/HSP mode with mSBC or (god help us all) CVSD.