Mean purity and completeness as a function of p_any for LS10, GDR3, and CW2020, averaged over their respective surveys’ footprints (i.e. considering eROSITA sources outside the Galactic plane in the case of LS10). Different colours indicate different detection likelihood thresholds (DET_LIKE_0) for the eROSITA sources. The catalogues include the p_any thresholds and the completeness/purity intersection averaged compur[6,7,8] computed per eROSITA tile as a function of DET_LIKE_0.