Notes. The comparison between C21, analyzing sources with i-Kron radius above 0.8″, to this work, with sources having an i-Kron radius between 0.5″ and 0.8″, clearly shows that larger sources are more likely acting as strong lenses, as expected. We note that this is a fair comparison as we use the same network and threshold, apart from the number of network candidates after first cleaning because of a less restrictive cleaning in C21. Further details and the exact definition of our overdensity (OD) flags, namely, OD_lit based on the literature, OD_vis based on the visual inspection, and OD_phot on the photomtric redshifts, are given in this section and in Sect. 4. The difference between the sum of grade A and B lens candidates from C21 and this work (totaling to 629 systems) and the number of 546 systems analyzed in Sect. 4, is the result of excluding duplicates.