Can't read ios album content (all photos) using File plugin or capacitor filesystem

Possible short answer: Not supported.

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Top 3 Solutions for Accessing iOS Album Content with File Plugin and Capacitor Filesystem
One of the most important features of iOS devices is their ability to store and manage various media content such as photos and videos. The recent versions of iOS have introduced a new Album App, which makes it easier for users to organize their media content. However, developers face a challenge when it comes to accessing media content from an iOS Album App. In this article, we will discuss the top 3 solutions for accessing iOS Album content with File Plugin and Capacitor Filesystem.

How to Troubleshoot File Plugin and Capacitor Filesystem Issues When Unable to Read iOS Album Content
When working with iOS album content in your app, you may run into issues where you are unable to read certain files or folders. This can be a frustrating problem, but fortunately, there are several steps you can follow to troubleshoot and resolve the issue.

An In-Depth Guide to Resolving iOS Album Access Problems with File Plugin and Capacitor Filesystem
If you're developing an app for iOS that involves accessing the device's photo album, you might encounter some troubles with the File Plugin or Capacitor Filesystem. The reason for this is Apple's strict policies regarding user privacy and data protection. In this guide, we'll explain how to work around these limitations and gain access to the photo album in your iOS app.