After I connected a Bluetooth headphone to my PC (Manjaro Gnome) and the sounds were in very poor quality. I opened sound settings and noticed the HSP/HFP sound configuration was selected. I changed the configuration to the A2DP Sink and hoped the sound will be improved. But the sound quality was the same as before. I headed over to sound settings again and saw that the configuration was changed to HSP/HFP again. After failing to change the configuration through the GUI, I searched and found numerous people faced the same problem too.
I found this solution on the ArchWiki. And tried every possible solution stated here. But couldn't change the driver to A2DP from HSP/HFP.
Please help me fix the problem.