Summary of absorbing gas metallicity and kinematics. The differently coloured segments represent the Δv₉₀ regions, and dots indicate the location of H₂ components. The zero of the velocity scale is set to the best estimate of the systemic redshift z_sys from ionised lines (Sect. 4.2). Positive velocities mean here . Ellipses are shown at the location of the CO(3-2) emission whenever observed, and the major axis is equal to the line FWHM. z_CO is shifted with respect to by about 250 km s⁻¹ on average (dash-dotted line).