Connectivity of central galaxies as a function of their stellar mass in Flagship model m3 (top) and GAEA model ECLH (bottom) mocks for the fiducial galaxy sample 𝒟_noise, 60%, with stellar mass weighting of the skeleton (left) and without weighting (right). As expected, connectivity increases with stellar mass, with weighting of the Delaunay tessellation introducing a bias at lower stellar masses leading to reversed trend. Correction for the FoG effect is needed to recover reasonably well the M_*-connectivity relation, in particular for weighted tessellations.