Isn’t this just ontological then. It doesn’t seem like a novel observation that “measurement devices” collapse a wave function (Schrödinger) if you’ve defined a measurement device as such.
The "Copenhagen interpretation" as we understand it, in which some thing "collapses" when measured, trades under the same name but was invented later. As a result the original interpretations of Bohr/Heisenberg and their philosophy of science have somewhat exited the discussion, even though they had the only defensible epistemology -- the rest as you say is just ontology.