I often only use the left earpiece when listening to music and that can make stereo-mixed songs sound really weird. Instead of remixing my library to send all audio on both L and R it’s easier if I can ask my player to do that for me.
On the desktop it’s as easy as going to Audio settings and choose “Stereo Audio Output Mode” to “Mono” but I find nothing like it in the Android app.
I imagine I’m not alone.
How have you solved it?

Solution:

@[email protected]
On your Android settings (check the Hearing Accessibility menu) there is systemwide mono output availability on some devices.