But the handling of the command is application independent. Also many applications have their own clipboard
The fact that you say "it deletes something" means you are ignoring the copy process happening in the background.
That something could be any text or file and both have different implementation depending on the app receiving the command.
File cut doesn't even copy the file into the windows clipboard, it just copies the reference to where the file is stored
Other objects like Text behavior incur a replacement of the data on the w clipboard but that's not the same as erasing although it might seem like it that's why