I don't believe that's correct, and if you believe that it is, you may be fooling yourself. But I digress. First let me properly define some items.
Manuals are sometimes helpful.
By those definitions, I believe that the Mac OS is difficult. Consider the following items. These are things Mac users take for granted. Extensions and control panels can conflict, but they can also be disabled. Command-option at startup rebuilds the desktop file, something you should do monthly.