Microsoft Forms' new integration with Microsoft PowerPoint will allow a teacher to easily insert a quiz to a PowerPoint deck. Click the Forms icon in PowerPoint ribbon, the list of forms will be showed in the task pane. You can select a pre-created form and embed it to the current slide. Students who view this presentation can fill the form and submit without leaving PowerPoint.
Forms integration in PowerPoint is currently being developed and will be available to desktop users of PowerPoint in a few months.