To clean duplicate photos on Android, you should consider using best duplicate photos finder tools. It helps you free up storage space in few quick steps.

Whether you’re using Linux on your desktop or a server, there are good tools that will scan your system for duplicate files and help you remove them to free up space. Solid graphical and command-line interfaces are both available.
6 Best Tools to Find and Remove Duplicate Files in Linux
https://www.tecmint.com/find-and-delete-duplicate-files-in-linux/