Upcoming moOde 9.0.0 (Bookworm)

[Tim Curtis]

I assume the volume options are relevant only for "outgoing" connections (to headphones et al)?

Actually just the opposite. They only affect moode output volume for incoming connections like a smartphone. Its meant to address the issue where for some reason (certain) Bluetooth clients seem to have a very steep volume curve whereby even one volume bump above zero is pretty loud.