When a speaker presents a PowerPoint, the 'start slideshow' button will open the PPT in full screen mode. This leaves no accessibility for the speaker to view chats, launch polls, or answer questions in the Q&A. However, there is a way to start the slideshow so that the PPT opens in an application window instead of fullscreen!
To use the 'Window' method, follow the steps below:
Open the PowerPoint presentation, select the Slide Show tab and then click the Set Up Slide Show button.
Select the Browsed by an individual (window) option and de-select the Show scrollbar option.