I'm using Steam Link on a Raspberry Pi 4, running Raspbian Buster.

The only way I'm able to navigate in the initial application menus (before connecting to a remote computer) is to point and click with a mouse. Unfortunately, this is inconvenient as the device I'm using is primarily an HTPC with only a remote control (that sends keyboard key presses) and a wired xBox 360 controller for Steam.

I've been able to exit Steam Link once or twice using the back button on the controller (as per this thread), but usually this doesn't work. No other keys/buttons seem to do anything.

Is this expected behaviour, or is there something wrong with my setup?

Cheers,
Jon