Unfortunately no OS so far cares about backwards compatibility for users. Everyone thinks it is ok to force whatever new UI and workflows their monkeys dreamed up on the userbase.
My desktop (Linux running Window Maker) looks and feels more or less the same today as it did in 1997 - years before i even learned about it :-P. If anything, bugs aside, all changes since then have been for the best IMO.
Of course that's mainly possible because of how modular the Linux desktop stack is.
