The actual relevance of the individual identified processes and the concomitant dominant oxidation mechanism(s) can only be determined through a microkinetic analysis of their interplay within the overall network spanned by all elementary processes at given environmental conditions. For the present system, this would require kinetic Monte Carlo (kMC) simulations that explicitly resolve the atomic arrangement at the surface. Frankly though, present-day kMC simulation packages would not be able to cope with the above described complexity of the APE-identified set of elementary processes. This concerns not only the sheer number, but also that they largely involve atomic positions beyond those of the underlying Pd crystal and corresponding high-symmetry O adsorption sites. In other words, the processes readily reflect that surface oxidation will involve a significant degree of amorphization, whereas existing kMC simulation packages largely draw their efficiency from evaluating lattice models that restrict atomic positions to a specified crystalline lattice. This situation would be further aggravated when aiming to explicitly assess a possible operando fluxional behavior in oxidation catalysis, as this would require to also APE-identify and include the likely at least equally massive number of additional elementary processes involving the reducing reactants and the evolving surface reaction intermediates.