If you're on a FaceTime call and want to show the person you're talking to what's on your screen, you can by follow these instructions. They work on iPhone, iPad, and Mac.
How to Share Screens On Mac, iPad, iPhone
How to share screen on FaceTime with others on iPhone, iPad, Mac
How to Share Your Screen in FaceTime
How to screen share iPhone with Facebook Messenger - 9to5Mac
A Virtual Valentine's Day Date Idea Every iPhone User Can Try - CNET
Apple Support on X: Collaborate on a project, show a friend a new tip, or check a menu to order ahead. 🙋🏿‍♂️🙋🏽‍♀️ In iOS 15.1 and iPadOS 15.1, you can share your
How to Send a FaceTime Link to Any Device
Share your screen in FaceTime on your iPhone or iPad - Apple Support (IL)
How to share your screen on FaceTime