Display of the QQ plot, comparing identity (flat histogram) against the PIT values derived from our redshift PDFs of the validation sample (top panel), and the differences between the QQ plot and identity, highlighting systematic biases or trends for the two morphological classes (PSF and EXT), shown in the bottom panel. For all panels, blue refers to results achieved with a single model (see Figure A.1) while orange reflects the results obtained when utilizing ensemble results (refer to Sect. 5.6).