I've been using macOS for more than a decade, and I can't remember a single case of doing anything where macOS being supposedly "document-oriented" helped me in

I've been using macOS for more than a decade, and I can't remember a single case of doing anything where macOS being supposedly "document-oriented" helped me in any way that wouldn't work exactly in the same way in a different OS. So I'm not sure of what use is it for me, really?