Schematic of the different accretion estimates used in this work. Left: Reference method of the tng model, in the centre the ff and mod ff models and on the right the models with accretion disk (ff disk and mod ff disk). Top and bottom rows show the kernels at z = 8 and z = 0, respectively, both at fixed proper distances. The change in kernel size in tng is the median from the respective L50n768 simulation, while the median kernel size in the other models is constant.