Confusion matrices for Method-1 (top left), Method-2 (top right), Method-3 (bottom left), and Method-4 (bottom right) for the multi-class classification task on Horizon-AGN (from methods trained on TNG). The data from all four redshift bins are combined. The post-merger class includes the ongoing-mergers. The confusion matrices are normalised vertically, and therefore the diagonal represents the precision of each class. The recall is shown in brackets.