the wave function collapsing is an oversimplification inhow we describe it, but i dont think the underlying facts any less true.
What we call wave function collapse is just entanglement from the perspective of the thing being entangled.. We are just idiots and most people dont recognize "observation" is just a fancy term for "I entangle myself with the system". The wave function never really collapses in any absolute sense (as in someone not entangling themselves with the system).