The exact sTDDFT strategy to fully cover the environmental response is computationally very costly. To mitigate the computational burden, a cumulative evaluation of response effects of individual environment subsystems was successfully introduced . But even this strategy is rather costly in large production-scale calculations addressing, for instance, chromophores in protein-model environments. For this class of problems, a combination of FDE-based TDDFT and an embedded many-body approach was successfully introduced . If the problem at hand involves resonant excitonic couplings between a large number of chromophores, further simplifications may be made. This involves the combination of subsystem TDDFT with Grimme's simplified TDDFT and/or the connection to more pragmatic exciton coupling approaches based on approximate Coulomb couplings. A description of such an approach, which also points out the connection between the simplified TDDFT approach (within the Tamm-Dancoff approximation)