Percentage error on fσ₈ for different redshift bins. The orange points show the results for our flip Fisher forecast, the green points the results for the standard volume Fisher, and the blue points the ones for the likelihood-based method. The results are obtained for different redshift bins with the same minimum redshift, z_min = 0.02, and increasing maximum redshift. The results are plotted at the maximum redshift of each bin and are the average over 27 realizations of a ZTF 6-year survey.