Which Keychron is that? I have a K2 which works well for me in "mac mode", both wired and USB.

The only gripe I have with it is that the Fn key is "fake", as in it doesn't send any signal by itself, so it can't be remapped.

I have a K2 as well. I set it in Windows/Android mode to use with my Linux box (Mac just changes the modifier keys afaict). The F-keys default to the FN row, not the F1-12. You can change that with a command I completely forgot and just copied once to a startup script.

> The F-keys default to the FN row, not the F1-12. You can change that with a command I completely forgot and just copied once to a startup script.

    > cat /etc/modprobe.d/hid_apple.conf
    options hid_apple fnmode=0

I think this has recently (Linux v5.19) changed to have F1-F12 by default.

I just looked in my startup and this is what I have:

    echo 0 | doas tee /sys/module/hid_apple/parameters/fnmode

But it's good to know where the permanent configuration lives, thanks!