Can you explain how "consciousness causes collapse" differs from the Copenhagen interpretation? I'm one of those people who think of it as meaning that, except from the other side: I feel like "consciousness causes collapse" is wrong and count that against the Copenhagen interpretation. But if Copenhagen doesn't necessarily presuppose that then maybe I'm going wrong.
The Copenhagen interpretation, also known as "shut up and calculate", asserts only that the mathematics of quantum mechanics are accurate, that is, predictive of observation.
Assigning metaphysical implications is declared out of bounds. It's a useful compromise.