Over the last 20 years, searches for dark matter above the proton mass have advanced significantly across direct and indirect searches, but sub-GeV dark matter has until recently been comparatively unprobed. In this talk, I will discuss the state of the Sub-GeV direct detection field, and prospects for applying quantum measurement techniques to lowering mass thresholds for new searches with event thresholds at the eV-scale. I will focus on recent work to utilize qubits both as direct sensors for dark matter scattering and transducers for phonon, photon, and charge production in other substrates, and on synergies in development of superconducting qubits with improved coherence.