Measured X-ray radial projected luminosity profiles (0.5–2.0 keV rest-frame) for the quiescent sample “QU_M10.7” (red) and the star-forming sample “SF_M10.7” (blue) of central galaxies, i.e., at similar median stellar mass around the scale of the Milky Way and Andromeda, albeit in the range 0.05 <  z <  0.3, using the M1 mask (which removes all X-ray-bright AGN in the samples; left column) and M3 mask (which does not remove X-ray-bright AGN from the sample; right column). Both samples have the same mean stellar mass of ∼10^10.7 M_⊙ and mean redshift of z ∼ 0.2 (but see the underlying distributions in Fig. 4). QU_M10.7 (M1 or M3) shows a clearly extended profile, while SF_M10.7 (M1 or M3) shows a profile compatible with that of a point source convolved with the eROSITA PSF (dashes). The background level for each stack is given by the dotted lines. The bottom row shows the corresponding background-subtracted profiles.