Beware the traduction of the actual item in the “Edit” menu is actually “Erase”’. (“Effacer” in french). You erase a character in a text, but you delete an items (file or methods, etc.)
And this option have no shortcut.
Yes, for delete one or many selected items.
We could imagine differents methods for deleting the items on each platform but, on Mac keyboard there is also a “Suppr” (in French) key; this key is normally the opposite for the Backspace (= erase to the left). But it’s true that it is less used on Mac.
And personally, I prefer have to use 2 keys associated than only one for this type of dangerous action.