It was called At Ease (https://en.m.wikipedia.org/wiki/At_Ease https://en.m.wikipedia.org/wiki/At_Ease). I’m surprised to find out it was itself an Apple produ

It was called At Ease (https://en.m.wikipedia.org/wiki/At_Ease https://en.m.wikipedia.org/wiki/At_Ease). I’m surprised to find out it was itself an Apple product; I had always assumed it was a third-party shell, akin to Norton Desktop for Windows 3.1.