Top: stellar mass as a function of the free-free luminosity at 2 cm estimated by Garufi et al. (2025) and by Rota et al. (2024). The plot also reports the histogram counts of the stellar mass. Bottom: 3.6 cm luminosity as a function of the stellar or bolometric luminosity for the two analyzed samples and for class 0-I radio jets (Anglada et al. 2018). In both panels, full disks (·) and transition disks (∘) are shown. The luminosities of most of the transition disks are lower limits (triangles) to the real values, since the spectral indices used to extrapolate them are upper limits (see text for further details).