Comparison with WMAP and Planck results. Left panel: we show the Ω_m − σ₈ parameter space, along with the 1D marginalised posteriors with the relative intervals between the 16th and 84th percentiles, in the case of the cluster counts’ analysis in the AMICO KiDS-DR3 catalogue (solid grey lines). In the same panel, we also display the results from WMAP (Hinshaw et al. 2013) (Table 3, WMAP-only Nine-year; red dash-dotted lines) and Planck (Planck Collaboration VI 2020) (Table 2, TT, TE, and EE+lowE; blue dashed lines). Right panel: we show the posteriors for the parameter S₈, where the bands show the intervals between 16th and 84th percentiles. The symbols are the same as in the left panel.