Comparison between binary parameters inferred from Gaia summary diagnostics and reference values from the DR3 NSS catalogue. Left panels: Histograms for the 10 420 stars (out of 21 thousand variable RGB stars) with Gaia orbital solutions. Right panels: The subsets with AstroSpectroSB1, SB1, and Orbital solutions. Comparisons are shown for orbital periods (top) and companion masses (bottom). Gaia BH 2 and the candidate BH from LAMOST are highlighted (black). The systematic offsets in the inferred parameters likely reflect a combination of inclination effects, the preferentially high inclinations and shorter periods of systems in the NSS sample, and the fact that spectroscopic orbits yield only minimum companion masses.