Relation between the Q parameter and the L/M ratio of ALMAGAL clumps which host at least ten cores. The two dashed lines values Q=0.65 and Q=0.8 defining the intervals for which it is most likely that the hosted cores follow a fractal type of subclustering (Q ≤ 0.65) and radial distribution with a central concentration (Q ≥ 0.8), as indicated by the Monte Carlo simulations in Appendix D. The dotted line points to the Q=0.75, which separates the two regimes with a lower statistical significance. Estimates from the ASHES (dark gray; Sanhueza et al. 2019) and ASSEMBLE surveys (light gray; Xu et al. 2024) are included, and are shown as star markers.