Orbital properties of the metal-rich stars detected in the high-quality Gaia DR3 GSP-Spec sub-catalogue from Recio-Blanco et al. (2024), compared with those of a subset of solar-metallicity stars. Left : distribution of v_φ velocities for metal-rich (red, empty histogram) and solar-metallicity (grey histogram) stars. From the shape of the metal-rich stars histogram we divide the sample into slow (|v_φ| below 205 km/s) and fast (|v_φ| above 205 km/s) stars. Middle : distribution of guiding radius (from Recio-Blanco et al. 2024). Right : distribution of eccentricity (from Recio-Blanco et al. 2024). For these last panels, we divide the sample into solar metallicity (grey), slow, metal-rich stars (purple) and fast, metal-rich stars (orange).