The influence of the assumed priors for the underlying abundances of water and sodium on the modelled geometric albedo. In the left panel we show the distributions in the CHEOPS bandpass, and in the right one we show the distributions in the TESS bandpass. We overlay the observed distribution to suggest that perhaps the underlying effective metallicity distribution is within these ranges; however, we are also very aware that the uncertainties of the observations highly influence this shape (due to the low number of observations).