I haven't tried it, but I saw people generating VBA script code with ChatGPT that can be then input into PowerPoint macro editor to automatically generate also the layout. I would be surprised if it made reasonable design choices though, and I expect you are still better off generating content and layout in two consequent steps.

You can already tell ChatGPT to create text for your slides. But creating a presentation, at least for a professional talk, is much more than throwing slides on the screen. The slides are the easy part. Creating a compelling talk with good pacing and delivery takes work.