In a document library, I would like to show different columns at a folder level, not at an overall level.
Currently, I can see the column fields common for all the folders. Is there a way to have specific location views?
That is achievable, you have to follow the below steps:
this blog give you step by step details about this: Harness SharePoint Library and Folder Default Views to build more appealing solutions
Create an subfolder content type which use folder as parent content type.
Add the subfolder content type in the document library, now you can show different columns at a subfolder content type.