I switched to Windows in the year 2000, or 2002, around then. It used to be cool because "the app is just a file that you can place anywhere, or trash when done" was true. They arrived usually as Stuffit or Binhex archives, rarely as disk images. There was no fussy "applications folder" with special permissions. You decompressed the file to anywhere and ran it. If you felt like updating something, this was accomplished by going and getting a new one.