KiDS-1000 results for f_δ, mn, as in the middle panel of Fig. 4, in relation to alternative hypotheses using the reference cosmology P_δ^fid(k, z) and best-fitting bias parameters to match the KiDS-1000 data vector, ξ_±^(ij)(θ). The filled squares assume shear m-bias factors {m_i}={+1.00, +0.48, −0.023, −0.028, +0.035}, the filled circles assume photo-z biases {δ_zⁱ}={−0.075, −0.079, +0.009, +0.018, −0.052}, and the open diamonds employ the eNLA model with {A_IA′,z_piv, η}={0.3, 0.19, 1.5}. The crosses assume a hybrid model of eNLA and a smaller z-bias: {A_IA′,z_piv, η}={0.45, 0.25, 2.3} and {δ_zⁱ}={−0.017, −0.058, +0.027, +0.025, −0.043}. The data points indicate the posterior median (CIs are similar to those of the shaded regions); the filled data points use alternating k-bins to avoid overlap.