Slope of the reconstructed SFH, as defined in Equation (3) in COSMOS2020 (solid black lines with error bars) and HORIZON-AGN (dashed red lines) for all galaxies in the sample (top) and passive only (bottom). For each galaxy, individual slopes computed from 50 SFHs drawn from the posterior distribution were averaged. The two first redshift ranges were chosen to encompass similar comoving volumes in order to mitigate possible cosmic variance effects in the galaxy distribution. The hexagons are colour-coded by the logarithm of the galaxy number density in COSMOS2020 in the considered redshift bin.