Drupal 8 views managed file: add preview image
This helper module will add an extra field to your views overview. This helps content editors to see which file is being meant. In combination with entity browser is this a big win for your usability. Enjoy!
Download the code at https://github.com/stef-van-looveren/views-file-preview
More tutorials & code snippets at https://stefvanlooveren.me