Schematic view of the different galaxy components and the relevant angles studied throughout the paper. We note that Ψ_star, BH is the 3D angle between the BH spin and the angular momentum of the host galaxy. The latter was estimated by considering all star particles within a sphere of radius R_e. Furthermore, Ψ_gas, BH is the 3D angle between the BH spin and the gas accretion disk gas (J_gas) estimated within the four closest cells (in radius) from the BH position and using mass and kernel weighting.