Comparison between the polarization time series of changing-look quasars (solid line) and Seyfert galaxies (dashed lines). Only the relative contribution of the host galaxy to the total and polarized type 1 fluxes is different: 5% in the quasar case, and 50% for Seyfert galaxies. The rest of the panel description is similar to the caption of Fig. 3. a: observer inclination ∼10° from the polar axis of the model. b: observer inclination ∼45° from the polar axis of the model. c: observer inclination ∼60° from the polar axis of the model. d: observer inclination ∼80° from the polar axis of the model.