Left: Ratio of the Hα and Hβ attenuation laws derived vs. the Hα attenuation for NEWHORIZON (circles) and NEWCLUSTER (squares) simulated galaxies. Black, blue, and orange represent DTM ratios of 16%, 25%, and 40%, respectively. The ratio derived for simulated galaxies from Tacchella et al. (2022) (dashed gray line) and Kapoor et al. (2024) (dash-dotted teal line) and that derived by Calzetti et al. (2000) (dashed blue line) for local starbursts are shown. Right: Distribution of the derived attenuation law ratios for our sources at different DTM ratios.