Therefore, even if one disregards the issue of collectivity, the results obtained in these works may not be directly relevant to the experiments that were conducted in the liquid phase. That said, as has been argued in Ref. 363, the energy-diffusion-limited regime is more prevalent than is commonly assumed for chemical kinetics in liquid solvents. Further, it seems the theoretical results in Fig. closely resemble the experimental results presented in Ref. 112, as depicted in Fig. 19c. Finally, in Ref. 228 exact quantum dynamics simulations, using the Hierarchical Equations of Motion (HEOM) approach, were carried out for a model system depicted in Fig. . In this work, a reaction coordinate was coupled to a dissipative solvent environment, a cavity photon mode which is also coupled to a dissipative bath composed of far-field radiation modes describing cavity loss (see Sec. 4.7).