Watch the video:
Action Mode is designed to offer extra stabilization when capturing video while moving, making it ideal for fun shots that otherwise would not be possible without expensive equipment. Apple designed Action Mode to replicate the video quality you might get using a gimbal.
For more details, read the full story at MacRumors:
https://www.macrumors.com/2022/11/10/iphone-14-action-mode-video/
