Reading View in PowerPoint for Mac
PowerPoint for Windows has Reading view which is like Presenter view with the title bar and the task bar. The good thing about Reading view is that you can have multiple windows open, and you can also have two presentations with Reading view open in two different displays, thus affording an amazing way to compare before and after slides. PowerPoint for Mac still does not have this view.
You can learn more about Reading view at https://www.indezine.com/products/powerpoint/learn/interface/365/reading-view.html