Most QI professionals do not worry about the philosophical "measurement problem", because it does not matter in their daily work (the math just works). However,

Most QI professionals do not worry about the philosophical "measurement problem", because it does not matter in their daily work (the math just works). However, it is certainly interesting and it might end up being important for the foundations of quantum mechanics. By the way, here is something you might want to look up: in the context of Lindbladian (non-unitary) evolution or in the context of weak quantum measurements, the measurement problem is not particularly obvious or disturbing. At the end it is still there, but these toolkits give you a way to reinterpret it as an uninteresting detail of the theory, not as a horrible stain.