Cannot sort files by Size, Type or Date.
In my Files backend window, I can only sort by Name. Sorting by Size, Type and Date all used to work by clicking on the column heading, but some years ago this stopped working. Where there are a lot of files or pictures, this lack of functionality makes housekeeping very difficult. When I click on the column heading, I get a vertical line and the sort does not happen.

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marcia boyd commented
This feature is critical to housekeeping. It is incredibly difficult to find and manage files without this feature. May also consider enhancing the ui for files to include filtering and possibly an export feature, but the addition of additional sorting would be a great start.