Distribution of GRB properties measured by Fermi/GBM. The green colour represents the whole Fermi/GBM population, in dark blue those detected co-detected by Fermi/GBM and Swift/BAT (${\mathrm{CD}}_{\mathrm{GBM}}^{\mathrm{BAT}}$) and in light blue the ${\mathrm{CD}}_{\mathrm{GBM}}^{\mathrm{BAT}}$GRBs observed by H.E.S.S. The black lines represent the individual measurements for all GRBs detected at VHE and by Fermi/GBM, except for GRB 190829A, which is represented by an orange arrow. Top-left: Distribution of the T₉₀ parameters. Top-right plot: Overall fluence of the burst.