A deeper perspective on the aforementioned charge transfer mechanisms can lead to charge-transfer corrections, if feasible at all, to QM/MM predictions of solvated chromophore excitation/deexcitation. Towards this, we outline our recent deployment of two quantum mechanical embedding schemes -density matrix embedding theory (DMET) and absolutely localized molecular orbitals (ALMO) -to explore mechanism a above (i.e. chromophore-solvent orbital entanglement). The ALMO analysis will also shed light into mechanism b. We stress that many other quantum embedding models have been developed over the years, some of which are potentially also well-suited for a detailed analysis of orbital entanglement and charge transfer.