https://9to5mac.com/2024/09/23/ios-18-1-camera-control-iphone-16-selfie/ 

1. Open the camera app, lightly press the Camera Control to bring up the menu
2. Lightly press the Camera Control twice and navigate to the “Cameras” menu
3. Swipe all the way to the left and you’ll see a new selfie option https://media3.giphy.com/media/8v6Z3YyULB5Q0Skbac/200.gif