Radio excess observed in our galaxies compared to the average FIR-to-radio SED of similarly massive QGs at intermediate redshift. Top: observed 3 GHz flux for our sample (red dot) compared to the observed FIR-to-radio SED for ⟨M_⋆⟩∼1.1 × 10¹¹ M_⊙ galaxies at z ∼ 1.8 in Gobat et al. (2018) (black dots). The best-fitting template of Gobat et al. (2018) is shown as a black curve. The same template, but rescaled to our redshift and average SFR (D’Eugenio et al. 2020), is shown as a red curve. Bottom: observed flux normalised to the respective model at the corresponding wavelength.