Here I found the best way how to upload and retrieve files from nested arrays in Laravel with clear, step-by-step instructions.

// Access the first request's image file
$file = $request->file('request.0.image');

// Access the second request's image file
$file = $request->file('request.1.image');

Here In below article I found full detail description and usecases

https://tutorial-tools.com/post/how-to-upload-and-retrieve-files-from-nested-arrays-in-laravel-the-ultimate-guide