> does this index the disk to do this ? So the filemanager is working with an index rather than the files ? It could be stale ?

Good question. There is no index. WhimFiles reads the actual directory live when you open it, and filtering runs in-memory on the real file list, so there's nothing to go stale. It also watches the folder and refreshes when things change on disk, so you're always seeing the real current state.

On getting/pasting paths WhimFiles does both: "Copy Full Path" in the right-click menu (or from the command palette), and "Go to Folder/File" where you paste a path and jump straight there. That was one of my own Finder annoyances.