Using file-based media might cause scalability and performance issues. Starting from Sitecore XP 9.3, SPEAK-based dialogs do not support uploading media files to the file system. By default, media files are uploaded to the content database.
In some scenarios, media files might still be uploaded to the file system, leading to inconsistent behavior.
To ensure consistent media upload behavior and to avoid scalability and performance issues, consider one of the following options:
<setting name="Media.UploadAsFiles" value="false" />