Number of cross-matches of ComPACT cluster candidates with other catalogues. The left panel shows all candidates, the right panel shows only ComPACT candidates that have no matches with ACT DR5 or PSZ2 catalogues. In each panel, the first line shows the total number of ComPACT objects in a considered sample/subsample (first line). The second line illustrates the total number of matches across explored catalogues. The remaining lines represent the number of matches with a given catalogue.