As we all know unlike PCs or other platforms the Amiga or AROS can be turned off quietly from the switch without worrying about causing damage, unless the system is not performing some write operation, in this case you risk a file corruption or an invalidation of the Hardisk or Floppy, which is rare if you use some Filesystems.
Well in this regard, given the request from a User AlexanderLUFC I have created a small App (script arexx) to turn off the system using the system command Shutdown, the icon can also be inserted in AmigaStart ready to use, see screenshot, of course in the case of AROS you must turn off the PC from the switch, unless there is a command on AROS that I do not know that allows you to turn off the PC, if someone is more informed or has any idea is welcome.