iPod Gens 4(Color), 5, 6, and 7
Rockbox Dev version installed 22/10/25
When using the click wheel's Fwd and RW buttons to navigate in and out of menus, those button presses do not generate an audible click.
I also tried it with a 4th Gen Color running Rockbox 3.15 and a 5th Gen running the dev build from 22/08/05, and they both clicked when using the Fwd and RW buttons to navigate in and out of menus.