Zoom in to part of a slide in Slide Show view
Today in PowerPoint for Windows while delivering your presentation and using presenter view, you can magnify part of the slide on the screen. See details here https://support.office.com/en-us/article/zoom-in-to-part-of-a-slide-in-slide-show-view-19ca20d4-a34c-4a65-9bca-a6de6659d79b
Please, enable in PowerPoint for Mac this feature already available into PowerPoint for windows.
Yes, that's a good feature!