It was a fascinating idea - programs were hidden behind a document template metaphor. It was not as neat as Windows “New” menu and its templates folder.
The macOS Finder has its own version of the Lisa's stationery feature:
File > Get Info > Stationery Pad
To make a document template folder, you mark your document templates as stationery. Then drag the template folder to the dock to get a pop-up template menu (or multiple menus if you wish).The Star was quite inconvenient to work with - and worked with removable media via an import/export metaphor. Also, it had very little of the direct manipulation of desktop objects the Lisa introduced. It knew no drag, only point and click. Ironically, we can say that drag-less UI was a drag.