As others have pointed out, Plexamp is currently a mobile-first app. Not a huge deal IMO, and it mostly works fine in my setup (I kinda like that it is comfortable scaling to very small widths, so I can easily have another window tiled next to it on my second screen).
However, my quality of life is pretty heavily impacted by one thing: there is no consistent way to go back to where I came from. On Android for example, we have the back button. I naturally assumed when I first used the app that this would be bound to the Escape button, but pressing this currently does nothing. Would it be possible to bind Escape to the same functionality as the back button on Android?