Currently, you can search by Tags but only if you know the specific Tag label/name.

Problem is, you may not necessarily know all the Tags users within your organization are using.
Additionally, there is no standard report to which can export a list of all Folders and Files that have Tags.

•Foremost, it would be nice to have a way of identifying all tags used across your organization.
•If possible, if can offer a standard report similar to Files and Folders report that indicates Tags associated to them other than using the Search or API.