Distribution of the measured kinetic energy of the ionised gas in the identified regions of locally elevated Hα velocity dispersion (left panel) and the masses of the star clusters in these regions (right panel) shown for different metallicity cuts. These regions tend to have lower kinetic energy in the low-metallicity environment, but also the typical masses of clusters decline. The bin for Z < 0.1 Z_⊙ corresponds to the estimates of kinetic energy for 16 ionised gas superbubbles identified in the dwarf galaxies Sextans A (Gerasimov et al. 2022) and DDO 53 (Egorov et al. 2021) and is shown here for comparison.