Clearly, this benchmarking remained preliminary for various reasons: First, only one organic molecule and only a few configurations of that molecule were considered in the coupled cluster calculations; future work should include a larger set of species and configurations. Second, the use of cluster models means that the contribution of long-range interactions is absent both in the benchmark values and in the DFT adsorption energies. If some dc-XC functionals exhibited systematic errors in the description of these longer-ranger interactions, their magnitude could not be determined in non-periodic calculations. Third, it is clear that CBS extrapolation had a major impact on the benchmark DLPNO-CCSD(T) energies. Although a lot of care was taken in the choice of basis sets and extrapolation strategies to that DFT and DLPNO-CCSD(T) adsorption energies are directly comparable, future work should explore this in more detail.