CMB-only power spectra resulting from component separation with pipelines A, B, and C. We show non-Gaussian foregrounds scenarios d0s0 (top panel), d1s1 (middle panel), and dmsm (bottom panel) and consider the goal-optimistic noise scenario. The different colored markers with error bars show the mean of 500 simulations and the scatter between them (corresponding to the statistical uncertainties of a single realization). The dotted lines in the corresponding colors indicate the best-fit power spectrum model. In the dmsm case, we show the extended pipeline results from A + moments and C + dust marginalization with the best-fit models shown as dot-dashed lines. The black solid line is the input CMB model containing lensing B-modes only. We stress that pipeline C only considers multipoles up to ℓ = 180 in the power spectrum likelihood.