With Most Recent, you don't have to think about organising your app list, as the last app you launch always moves to the top. MostRecent is for those who prefer the mouse over the typing required to quickly identify apps with Spotlight, Alfred, etc. If your hand is already on the trackpad, go to the menu bar item and the app you probably want is right there. This is the app that will take the absolute least amount of effort to launch one of the apps you use the most.
Updated on Aug 20 2019