As expected, most of the features were rare on home computers at the time, but have become ubiquitous (or unnecessary) on modern computers. HOWEVER, the `Datatypes` feature is really cool and would actually be a nice feature that still doesn't exist in Windows, macOS, or Linux. https://wiki.amigaos.net/wiki/Datatypes_Library
The Windows equivalent is/was COM and in particlar OLE ("object linking and embedding"). With appropriate DLLs you can make a new file format and drag-and-drop a file into Word and open it inside Word. The peak of this was ActiveX; in Microsoft's world around 2000, they really wanted you to be able to embed controls and programs in web pages and then put those web pages everywhere, including on the desktop background…
COM is pretty much alive and was modernised with .NET type system.