It must be admitted that it is difficult to find a more complicated interface.
This fictional architectural design perfectly illustrates what a bad user interface design would be if you wanted to live in it.
Good UX design example
Turn, pull, push ...
And nothing else is needed! The design of the handles on these doors is not only intuitive, but also difficult to use incorrectly. A perfect example of a good UX.
Image source: Marion, CF, Pixel Fridge
What is SX?
Spacing Experience is a new type of users experience research (User Experience UX) which, in addition to research on the experience of learning (Learnig Experience LX) or the purchasing process (Customer Experience CX), focuses on the space around a person, regardless of the type of space in which they move.