Provide a pre-set of default media assets for all Varbase Media Types, which are needed in development, testing, and demos.
Change directory to the Varbase Project in the terminal:
cd /var/www/html/projects/PROJECT_DIR_NAME
Install with Composer
composer require 'drupal/varbase_media_demo'
Enable the module by Drush ( or install it from the UI)
./bin/drush en varbase_media_demo
Open the site with the browser and navigate to "/admin/content/media-grid"