Relation between stellar mass, gas-phase metallicity, and SFR. Top: Mass-metallicity relation: The dashed red line is the MZR of SFGs at z ∼ 3.3 from Sanders et al. (2021) and the shaded red region is the observed 3σ scatter. For comparison, metal-poor local galaxies from Berg et al. (2022) are included as black circles, and the corresponding MZR is shown as the dashed black line. The red squares are SFGs at z > 6.25 from Matthee et al. (2023; stack) and Heintz et al. (2022; single-lensed galaxies). Middle (bottom): Differences between the metallicity from FMR and our metallicity estimates as a function of sSFR (metallicity). The shaded gray region is the 2σ observed scatter of 0.22 dex for the FMR at z ∼ 3.3 (Sanders et al. 2021). In all panels, our sample is color-coded by Σ_SFR, and the triangles are the galaxies without broad components. Pentagons and crosses are galaxies in our sample that show red- and blueshifted broad components, respectively.