Intercept A, slope B, and scatter σ_{log λobs} at a fixed weak-lensing cluster mass as a function of redshift. Blue and red curves refer to the two hydro simulations: GadgetX and GIZMO-SIMBA, respectively. In all panels, the results referring to a given stellar mass cuts are reported with different line styles. The black curves show the best-fit models as a function of redshift, combining both hydro run results at a fixed stellar mass cut. The best-fit values are reported in Table 1.