The unification of gravity with quantum theory remains an open problem in fundamental physics. Recent proposals suggest that gravitationally mediated entanglement could serve as a decisive experimental test of quantum gravity. However, recent work has demonstrated that classical–quantum hybrid models may also generate entanglement, implying that witnessing entanglement alone is not a “smoking gun” for quantization of gravity. Here we analyse the status of gravitons, gravitational entanglement, and experimental discriminants within the Diagram–Hilbert Space and Entropic–Originated Topological Framework (DHS/EOTF). We show that the theory naturally generates entanglement through operator-level quantum correlations while allowing both classical and emergent quantum gravitational regimes. We derive the conditions under which DHS/EOTF produces an emergent spin-2 graviton sector and identify modifications required to satisfy stronger experimental criteria based on scaling, non-Gaussianity, and mediator non-commutativity. This provides a roadmap for distinguishing emergent quantum gravity from classical–quantum hybrid models in forthcoming laboratory experiments.