Galaxy size (using as a proxy the expected radial location of the end of the in situ star formation, i.e. R_edge) versus galaxy stellar mass for our galaxy sample. The black dashed line represents the linear regression (in log–log plane) to the local values (in grey, visible at all redshifts) using the Chamba et al. (2022) sample and the green solid line depicts the linear regression at each redshift (fixing the slope to the local value). The galaxies in our sample are colour coded based on their stellar surface mass density at the edge position (Σ_edge). Individual error bars in our data points come from our spatial sampling when obtaining the surface brightness profiles (i.e. 1 kpc). A progressive departure from the nearby Universe values towards smaller sizes at higher redshift is noticeable. At a fixed stellar mass, more compact galaxies have larger Σ_edge.