Observed Hδ_A and Fe4383 absorption features compared to predictions from Prospector fits to the COSMOS2020 mock photometry. The galaxies are color-coded by their UVJ diagram classification as star-forming (blue diamonds) and quenched (red points). The absorption-only models are compared to the observed values (corrected for emission). The black line shows the one-to-one relation. The various markers correspond to the star-forming (orange) and quenched (green) galaxies shown in Fig. 3. The statistics of the intrinsic scatter and the Spearman’s rank correlation coefficient (ρ) are shown in the top left corner of each panel. The median uncertainties of each axis and galaxy population are shown in the bottom right corner of each panel.