When I connect to and select a bluetooth audio device, no sound comes out until I right click on the bluetooth dock icon and change the sound profile. It doesn’t matter which one is selected by default out of the two options (Codec SBC, Codec SBC-XQ), only that I must select the non-default one before the sound starts working. This is happening with a JBL Flip 6 speaker.
I previously reported the issue to KDE, and was told this is a bluetooth stack issue that should be reported to my distro.