You bring up an interesting point - although the jam version used a mobile-friendly aspect ratio, the control scheme of right + left clicking would have to be re-thought in order to provide a good UX. In native Android you can tell Godot to interpret a long press as a right click but I am not sure that would be good enough - the player would be at a big disadvantage compared to desktop.
I'm open to ideas... in the post-jam version I'm working on I actually made it 2 tiles wider so that it's clearer this is meant to be a desktop game.