Multi-wavelength data used in this study. Top: Footprints of the surveys. The eFEDS coverage is not corrected for vignetting. We do not show the WISE survey area as it covers the entire sky. Bottom: Transmission curves of the filters, from the optical to the sub-mm. For clarity, we do not show the eROSITA soft X-ray band. Similarly, we only display the KiDS u-band as the other KiDS bands overlap with the HSC filters.