No, you cannot change the mapping of the Steam and … buttons. They are only available to the Steam client. You cannot remap the Steam+other button combinations either.
Funnily enough when no game is running the Steam button focuses the Steam window. But that functionality is gone as soon as a game is running. Really frustrating.
I guess you could remap them in desktop mode? I haven’t tried but it should be possible.
No, you cannot change the mapping of the Steam and … buttons. They are only available to the Steam client. You cannot remap the Steam+other button combinations either.
Funnily enough when no game is running the Steam button focuses the Steam window. But that functionality is gone as soon as a game is running. Really frustrating.