Copying and pasting are universally hotkey+c and hotkey+v as an example. Creating a directory is context->new in all cases.
Some changes were weird for a small period of a few days, like when moving from Classic Finder to Mac OS X Finder where the priority of hotkeys for new windows vs. new directories changed. Or when in Windows the address bar got a lower priority than filesystem abstraction of user directories (at which point the purpose got mixed). Same with Gnome2 to Gnome3.
I'm curious to see if it's "hard" as-is, or "hard" when you come from one single environment with a lot of experience that is hard to adapt to something that is not visually identical.