To get started, open a web-based Word or PowerPoint document and press Insert > Pictures > Mobile Device. If you haven’t paired your Android device with your PC yet, you’ll need to take the extra steps to do so.
This includes scanning the QR code that appears on your computer screen and then downloading the Link to Windows app from the Google Play Store (if you haven’t already). Once that’s all done, you can browse the photos from your Android device from your PC and choose which one to add to the Word or PowerPoint document.
Microsoft says the feature will be “released over time to make sure everything runs smoothly”. It seems like a pretty handy addition to the app, and (when I decide to actually dust off my Microsoft 365 subscription) I could actually see myself using it as a way to quickly grab screenshots and insert them into the document to which I work, all without actually having to leave the app.