Some specialised tools like presentations built with Canva or Miro can easily switch from a presentation mode to a whiteboard mode.

Classical tools like Google Slides, Keynote or Powerpoint don't allow you to embed a whiteboard (directly from Miro, for example). But instead, you can make a screenshot of your zoomed-out whiteboard, add it to your presentation and add a link to the image. So when you arrive at that slide:

• You can easily click on the whiteboard screenshot to access the whiteboard

• And if the details have changed in the whiteboard, it's not an issue as your screenshot shows the overview, and each sticky note isn't readable as it's too zoomed out.