You can change the behaviour of the Side button on your iPhone or iPad to make it easier to use. This applies to devices that use FaceID for unlocking.
Add & customize your Search widget - iPhone & iPad - Google Search Help
The iPhone's new Action Button is more than a one-trick pony
Use Switch Control to navigate your iPhone, iPad, or iPod touch - Apple Support
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How to enable the one-handed keyboard in iOS 16 on your iPhone or iPad
5 Ways to Capture a Screenshot on an Apple iPhone or iPad - TurboFuture
Kill These 2 iOS Settings to Get Longer iPhone Battery Life - CNET
The iPhone's new Action Button is more than a one-trick pony
How to Use iPhone without Home Button: iPhone 14, 13, 12, 11, & X Series
Use Switch Control on your device to control another Apple device - Apple Support (IN)