Stack of the z = 0 satellite soft X-ray surface brightness excess radial profiles around all 352 TNG-Cluster halos. We compute the soft X-ray (0.5−2.0 keV) surface brightness (SB) excess around all ≈37 000 galaxies with $M_{\star }^{\mathrm{sat}}>{10}^{10}{M}_{\odot }$ and within a projected distance $d_{\mathrm{sat}}^{\mathrm{host}}<1.5R_{200\mathrm{c}}^{\mathrm{host}}$ of the 352 hosts. We then mean-stack these radial profiles in bins of satellite stellar mass $M_{\star }^{\mathrm{sat}}$ (top panel), and within a fixed stellar mass bin, we further stack in bins of host cluster mass $M_{200\mathrm{c}}^{\mathrm{host}}$ (bottom left) and cluster-centric distance (bottom right). In all panels, the control sample represents the same measurement, at random locations such that the distributions of cluster-centric distances match that of the satellites. Across all satellites, the X-ray excess extends to ∼20 − 100 kpc, although individual satellites or specific stacks may exhibit excesses out to ≈300 kpc from the satellites.