Decision tree we adopted to assign each eFEDS point source to the galactic or extragalactic class. First we classified the sources on the basis of the most secure methods (e.g. high-confidence redshift) and then proceeded with less reliable methods (e.g. based on colours) on the sources remaining in the pool, creating less pure samples. The numbers listed at each step include all sources, i.e., they also include those with an insecure counterpart (CTP_quality <2).