Left: redshift evolution of M_dust/M_⋆ predicted by different models (see Sect. 5.1). The observed data are overplotted with same colours as in previous figures. The grey, blue, and purple dashed and dotted lines represent predictions for galaxies selected as MS and SB DSFGs from Béthermin et al. (2017), Davé et al. (2019) and Pantoni et al. (2019), respectively. Right: evolution of M_dust/M_⋆ as a function of sSFR for the full sample of observed and modelled galaxies. The binned values from this work are shown with black circles with corresponding 1σ vertical error bars. The model predictions are denoted with same colours as in the left panel.