T_eff − log g diagrams of quality stars observed in APOGEE DR17, GALAH DR3, GES DR5 surveys (top row) and of stars that are common between these surveys (bottom row) color-coded by metallicity. In the APOGEE−GALAH and APOGEE−GES panels in the bottom row the APOGEE DR17 T_eff (K), log g (cgs, dex), and [M/H] (dex) are used on the axes and in the color-coding; in the GALAH−GES panel the GALAH DR3 T_eff, log g, and [Fe/H] are used. The separations of dwarf and giant stars are indicated by dashed lines in the common data sets.