There is a new feature in Microsoft's mobile PowerPoint app that allows you to create portraits of yourself. The feature is only available in the public version of the Microsoft Office Insider program.
The popularity of TikTok has led to an increase in portrait mode content. Portrait content creation has to follow suit as people adjust to consuming content in their phone's native vertical orientation.
Microsoft said it was shifting towards mobile-first content creation. Office Insiders can now switch between portrait and landscape modes when using PowerPoint Mobile.
If you want to create a new presentation, open an old one. The orientation option is from the design option. You can choose a portrait.
The new portrait mode for Microsoft Powerpoint is only available on Apple devices.