If you have only a single screen and want to use Presenter View in PowerPoint to see your speaking notes on your screen but show your slides in a Zoom meeting, this video shows you how to use Presenter View Preview to do so.
The Mac version of this video is at https://youtu.be/4jMn0yf3muo.
The article version of this video is at https://www.thinkoutsidetheslide.com/using-powerpoint-presenter-view-with-1-screen-in-zoom-on-windows/.
If you prefer to see other options for seeing your speaking notes while presenting in Zoom with a single screen, read this article: https://www.thinkoutsidetheslide.com/seeing-your-speaking-notes-in-powerpoint-while-presenting-slides-in-a-zoom-meeting-if-you-only-have-one-screen/
For all of my articles on effectively presenting in Zoom meetings, go to: https://www.thinkoutsidetheslide.com/articles-for-presenters-in-microsoft-teams-and-zoom-online-meetings/