Current estimates of the relation between the mass of the lightest neutrino eigenstate and the summed neutrino masses (solid lines). The horizontal dashed lines and the shaded area represent the eRASS1 and CMB combined estimate. The vertical dash-dotted line represents the lightest neutrino value corresponding to our summed mass estimate. Finally, the vertical dotted line corresponds to the 1σ uncertainty around the lightest neutrino mass estimate. We use blue and orange to distinguish between normal and inverted hierarchy. It is remarkable to show that although the difference between the models, the estimation for the lightest neutrino mass is almost identical.