Mass loading factor η as function of stellar mass for PHANGS outflow candidates (secure candidate: red circle, otherwise: orange star) and outflows compiled by Fluetsch et al. (2019) (blue diamond, blue errorbar). The PHANGS outflow candidates populate the lower stellar mass and lower mass loading part of the probed parameter space, but overall no significant difference between both samples is found. PHANGS stellar masses have an uncertainty of 0.11 dex and the statistical uncertainty of the mass loading factor due to error propagation is estimated to be 0.23 dex (red errorbar) with a larger total uncertainty of up to ∼1 dex.