Period-radius diagram showing TOI-672 b (yellow star) against the known planet population (light grey dots). Data of the known planet population are from the NASA exoplanet archive², and only those with periods and radii determined to better than 4σ are shown. The background is also shaded according to this population. Planets around M dwarf hosts are highlighted (as green circles with a black outline, cut on T_eff < 3900K, M_*, R_* < 0.6 M_⊙, R_⊙). The Neptunian desert boundaries derived by Mazeh et al. (2016) (orange line) and Castro-González et al. (2024) (red line) are shown. The desert, ridge, and savanna, as defined by Castro-González et al. (2024), are labelled, and the higher-period cut-off of the ridge is shown (dashed red line).