You have only two ways to get your deleted files back. The first one is to use iPhone data recovery software to perform the iPhone scan for the deleted files, and the second one is to recover files from your backup if you have one.
Good luck~
This post tells you how to delete partitions on a Mac with stepwise methods. Delete a partition on Mac without losing data.
This post explains what macOS context menu is and how to access and customize the right-click menu on Mac. You'll also learn how to expand the functions of the context menu.
