Additionally, these large corrections on anions can do more harm than good in certain circumstances. For example, when analyzing the convex hull and which materials are on it, it is more accurate to use the uncorrected energies than the standardcorrected energies. If the absolute value of the formation energy is important, then using the 110% PBE method is likely to help. In the supplemental information, we plot different subsets of the data, comparing to both experiment and r2SCAN, to show that the 110% PBE correction method outperforms the standard correction by method more and more as the standard correction method has a greater effect. This suggests that the key benefit of our simple, lightweight correction is to avoid the harm that can be caused by the standard correction method.