Primary BH mass differential merger rate density in the Local Volume for models A (left), B (center), and C (right) for the NoEv (upper panels) and Tidal (lower panels) cases. We show the mass distribution resulting from 1g mergers (yellow dash-dotted line), 1g and 2g mergers (green dashed line), and from all BBH generations together (purple solid line). The black dashed line is the median value of the POWER LAW + PEAK model, as inferred from GWTC-3 (Abbott et al. 2023b). The gray shaded areas are the corresponding 90% credible intervals. In this and the following figures, the black line and shaded gray areas are shown only for a qualitative comparison, because our simulations do not assume the parametric models adopted by the LVK.