Distance of the Gaia DR3 YSO candidates (red dots) and the Großschedl et al. (2018) YSOs (black dots) as a function of Galactic longitude. Large dots represent the med(D), which is median of the individual distance values in 0.25° bins, while error bars represent the med(D − D_L) and med(D − D_U), where D_L and D_U are the lower and upper limits of the individual distance values of the Gaia DR3 YSO candidates (blue dots) and of the Großschedl et al. (2018) YSOs (green dots).