Distribution of q_IR as a function of redshift and M_⋆, after removing radio AGN (red dots). Symbols are the same as in Fig. 9, except for the median q_IR estimates (blue stars), which are here re-calculated after removing radio-excess AGN (red dots). Fractions of radio-detected AGN and SFGs are reported in each M_⋆-bin, as well as the fraction of AGN relative to the full M_⋆ sample analysed in this work (in brackets). The blue and red solid lines denote the intrinsic IRRC of SFGs and the locus below which we classify radio sources as AGN (0.43 dex below the IRRC), respectively.