Does any other desktop environment have the type-to-search-application-menus feature found in Unity?
I’m curios about trying a more spartan desktop such as Xfce or LXDE. Or maybe something entirely different. But I want to keep the workflow where I can press the Alt
key from any application and type my way to menu entries.
What you are talking about is the HUD (Heads Up Display) which is a special feature of Unity. At the moment, there's no other desktop or window manager with this functionality.