...
To see an example of how metadata looks for a specific asset , an admin page has been created. Here all the metadata for a specific asset item can be previewed. It is available on the following path: /sitecore/admin/dfs/GetMetadata.aspx?id=[Item ID]
Below is an example of how it looks:
use the DAM for Sitecore Administration dashboard - DFS 9.2.0 - Asset metadata viewer.
4.1 How to retrieve metadata from an item placed in the silo bucket
...