Testing the models with eRASS1-cosmo as a test catalogue, and eFEDS as a reference catalogue. Each dot corresponds to one of the 531 eFEDS clusters in the plane of measured 300 kpc flux (F_300kpc in units erg s⁻¹ cm⁻²) and measured redshift (z_eFEDS). eFEDS clusters with only flux upper limits are placed at the bottom with star symbols. Black circles indicate clusters also found in the eRASS1 cosmology sample. Colour reflects the model probability P_i (Eq. (8)) computed for each eFEDS cluster.