Violin plots showing the posterior distribution of ξ_d resulting from the random sampling of the parameter space (see details in Sect. 5) for 15 super-early galaxies whose redshifts is indicated on the horizontal axis and whose name is shown at the top. For each galaxy, the red point represents the distribution median value; the horizontal bars inside the violin indicate the 32nd and 68th percentiles. The predicted ξ_d values are for η = 0, i.e., when no galactic outflows are allowed. The blue diamonds are the observed dust-to-stellar mass ratios; the green stars are the predicted dust-to-gas ratio, 𝒟. The horizontal hatched red band shows the measured ξ_d interval for 14 REBELS galaxies at z ≈ 7 (Table 1 in Ferrara et al. 2022; see also Dayal et al. 2022; Sommovigo et al. 2022; Inami et al. 2022).