Backstage view is not akin to other PowerPoint views such as Slide Sorter view or Normal view that relate to working with slides. In fact, Backstage view is not a view in those terms, because you can be using Normal view (to work with slides) and Backstage view (to work with options) at the same time. Consider Backstage view as an over-sized menu that gives you access to many options. In PowerPoint 2016 for Mac, Backstage view and Presentation Gallery are one and the same for most purposes, except the way they are accessed. Let us explore existing features within Backstage view.
Explore Backstage view in PowerPoint 2016 for Mac.