Comparison of real exoplanets for M_⋆ =  0.4 M_⊙ (left panels) and M_⋆ =  0.7 M_⊙ (right panels). The limit in equilibrium temperature is for proper comparison with our simulations. The brown- and blue-dashed lines correspond to Earth-like and 50% water+50% Earth-like compositions, with dark-blue indicating condensed-water and light-blue, steam-worlds (as defined in Appendix B.5). The green-dotted curves correspond to 50% steam+50% Earth-like from Aguichine et al. (2021) (T_eq = 400 K for dark-green and T_eq = 600 K for light-green). The real exoplanets are those with a relative error in radius less than 25% and in mass of less than 70%, with the data taken form the NASA Exoplanet Archive on 08.09.23. For the bottom panels, the real exoplanets are shown in the background in grey.