Classes automatically added to the link: 'file', 'file--mime-[MIME_TYPE]', 'file--[GENERIC_MIME_TYPE]' in EditorFileDialog.php not being added on the upload file <a> element
Classes that are used for styling/adding icons per file type purposes no longer attached to the a tag of the uploaded file
Enable version 2 of this module while using ckeditor 5, you will see that the a tag only has the data-entity-uuid and data-entity-type attributes but not the classes
Edit the ckeditor5_plugin js files so that the classes persist