Stellar surface mass densities (Σ_edge) at the radial position of the edge versus galaxy stellar mass for our galaxy sample. The black dashed line represents the linear regression to the local values from Chamba et al. (2022; in grey, visible at all redshifts) and the green solid line depicts the linear regression fitting at each redshift. The data points are coloured according to their size (R_edge) and the Σ_edge error bars come from the error bars in the stellar mass density profiles at the R_edge position. A progressive departure from the nearby Universe values towards higher densities is appreciable. The data points are colour coded according their galaxy size. At a fixed stellar mass, those galaxies with the larger stellar surface mass densities are those smaller in size.