An advanced feature within Zoom is the ability to show your PowerPoint slides as your virtual background. This feature allows you to advance your slides while keeping your video feed on top.
To show your PowerPoint slides as your background, click Share Screen. By default, the basic options appear:
Switch to the Advanced tab, and select PowerPoint as Virtual Background and then click Share:
Browse to find the file you want, and click Open:
It’ll take a moment to load your slides, but once they load you’ll see arrows in the bottom center of the screen for advancing the slides: