Re-extracted fixed measurements of the MMF amplitude parameter |$\hat{y}_0$| obtained from our Planck-like Websky-based synthetic maps with the randomized CIB for a mass selected sample. In each panel, the |$\hat{y}_0$| measurements for the panel’s MMF are plotted against those for iMMF6 (vertical and horizontal axes, respectively). Excellent agreement across all MMFs is observed for the full |$\hat{y}_0$| range. Compare with the analogous measurements for a tSZ-selected sample in Fig. 8.