Comparison of several average RV indicators with the zero point of the RV time series models. Different indicators are displayed in different colors (red: median value published in Gaia DR3; blue: median value 〈V_R〉 computed by variability processing; green: mean value computed by variability processing). The histograms show the distribution of absolute difference between each of the average values and , normalized to the latter. The thin black histogram, limited to a subset of the FPR sample, compares with the center-of-mass velocity derived by the non-single stars processing pipeline for Gaia DR3 (see Sect. 4.1.2 for more details), and refers to the scale on the right-hand side axis.