Position of our eight N2CLS DSFGs in the SFR–M_★ plane at z = 5.2, with sources at spectroscopic and photometric redshifts shown in red and blue, respectively. The SFMS from Popesso et al. (2023) and Speagle et al. (2014) is shown, with the 1σ scatter indicated by the light grey lines. For comparison, we include DSFGs from the GOODS-N field identified by Xiao et al. (2024) using JWST at 5.1 < z < 5.4 (excluding HDF850.1, GN10, and S3, which are part of our N2CLS sample). Galaxies from the 2 deg² simulated infrared dusty extragalactic sky (SIDES) simulation (Béthermin et al. 2017), selected in a similar way as N2CLS with S​_1.2 mm > 0.7 mJy at 5.1 < z < 5.4, are shown as downward orange triangles. The blue area indicates the location of the z = 5.2 DSFGs from Kumar et al. (2025), selected based on their 850 μm flux, using a flux threshold consistent with our N2CLS sample.