Average outflow velocity as a function of the stellar mass, SFR_100 Myr, and surface density of SFR_100 Myr (corrected by the magnification factor for NS_274). Filled stars indicate the targets analyzed in this work. The colored filled circles represent the homogenized literature compilation of Mg II outflows across redshifts from Davis et al. (2023, and references therein). The results from the stacking of post-starburst galaxies at z∼1.2 from Maltby et al. (2019) are shown with a red pentagon. The locations of two z∼3 recently quenched sources in Man et al. (2021) are marked by gray squares.