TNG50 galaxies in the M_* − R_e plane (top) and their MaNGA counterparts (bottom). The galaxies are colour-coded from left to right by their mean LW-age, LW-metallicity, LOS maximum velocity, dispersion, and projected V/σ calculated within 1 R_e from the recovered maps. The trends seen in the observed sample are replicated in the simulated sample with a greater dependence with galaxy size rather than mass. Although there is a discrepancy between the maximum values in dispersion and minimum values in age, the galaxies with these values lie in analogous regions of the plane.