Outflow velocity v_out as a function of host galaxy stellar stellar mass (M_*, left panel) and star formation rate (SFR, right panel), for those SUPER AGN sources with available SED-based estimates or upper limits (Circosta et al. 2018). Errorbars on M_* and SFR values represent the total uncertainty, including both statistical and typical systematic uncertainties (∼0.1dex in M_* and 0.3dex in SFR, Pacifici et al. 2023). Colours and symbols are the same as in Figs. 8 and 10. The two panels show neither clear trend of v_out with the host stellar properties nor separation between type-1 and type-2 measurements, which appear scattered together across the two planes.