X-ray 0.5–2 keV projected luminosity around central galaxies as a function of galaxy stellar mass and split into star-forming (blue symbols and annotations) and quiescent (red) samples, computed using the M1 mask. Each eFEDS+GAMA detection is indicated with circles, upper limits with downwards arrows. In the main panel, we show the luminosity integrated within 300 physical projected kpc. In the bottom left panel, we show the luminosity integrated within 80 physical projected kpc. In the bottom right panel, the relation is shown for the outer shell 80–300 projected kpc. Gray squares are the measurements from Anderson et al. (2015), computed within R_500c (main panel) and within 0.15–1R_500c (bottom right panel). The orange dashed line shows the prediction from the AGN population synthesis model (after excluding sources with F_X >  6.5 × 10⁻¹⁵ erg s⁻¹ cm⁻², as per M1 mask) of Comparat et al. (2019). The orange solid line shows the prediction for the clusters and groups using the model of Comparat et al. (2020a), i.e., the contribution of hot virialized haloes. The dotted line is the sum of the two.