Same as Figure 5 but for the simulated quasar sample 1 (2023 sources) with two different binning criteria: the one on the left is the same as for the real data (24 intervals, δ_DL ≃ 0.06), while the one on the right considers a coarser binning (10 intervals, δ_DL ≃ 0.1). In both cases, we can retrieve the input value of γ within uncertainties, supporting the assumption that γ is constant in the analysis of real data independently from any cosmological model (here Ω_M = 0.1 and Ω_Λ = 0.9 were assumed).