I don’t know when Apple introduced this feature, but did you know you can use your iPhone as a magnifying glass? This has come in handy many times.
I’ve had a typical magnifying glass on my desk and carry one in my laptop bag for quite some time. But now I can put those away.
I’m currently using an iPhone 13 Pro Max with iOS 16.1.1.
To get the magnifying glass feature to show up on your iPhone, just press the power button 3 times and your iPhone screen becomes a magnifying glass. Pretty cool. Hope that helps.