I like the idea of Featured Files in a separate tab but it still needs to upload the file directly of the device.
Will this in the future connected with the Media Library of the backend?
The plug-in specially does not use media manager.
The media manager does not have the ability to differentiate access rights. That may entail deleting other users' attached files in the media manager. That's why this plugin uses fileupload widget.
Try other plugin https://octobercms.com/plugin/ictsoft-blogfeaturedfiles