The default behavior can be irritating!
For the longest time, the iPhone's power button would end calls when clicked. iOS now finally allows you to disable this behavior, and here's how.
How to Decline and Silence Calls from Your Lock Screen
How to Power Button ends call in iPhone how to disable power button end call iphone 14pro
Hang Up a Phone Call on the iPhone by Tapping the Power Button
How To Turn Off a Phone Without the Power Button
Mobile (Only Editorial Content)
How to Prevent the Side Button From Ending Calls on iPhone on iOS 16
iphone XDA Developers
Power button to end call is not working. - OnePlus open : r/oneplus
iphone XDA Developers
11 ways to hang up a call on iPhone
How to Stop Your iPhone's Lock Button From Ending Calls
iphone XDA Developers
How to disable end call with the power/lock button feature on an iPhone - Quora
Why can't I end a call when my iPhone is locked? - Quora