Flipgrid now joins YouTube, Vimeo, Stream and SlideShare as supported services for PowerPoint online videos.
Microsoft’s Flipgrid is an education service for teachers to record videos to share with a class. Students can respond with their own recorded video segments. Drawing, text, emoji and other rich media are available for the videos.
Go to Insert | Media | Video | Online Video to see what services are supported.
You’ll need PowerPoint for Windows v 2104 build 13906.20000 or later for Flipgrid support
At present, PowerPoint 365 for Mac only supports YouTube, Vimeo, Stream and SlideShare.