HI-deficiency cumulative distribution function for GAEA-all (three lines for GAEA-all V1, GAEA-all V2 and GAEA-all V3); GAEA-mock (300 lines); and C22 split into the different environments and two mass bins (low-mass log₁₀[M_⋆/M_⊙]< 10 and massive galaxies log₁₀[M_⋆/M_⊙]> 10). In each plot, the median values with a 1σ confidential interval are reported. The grey vertical line shows the 0.5 HI-deficiency level as a level adopted to consider a galaxy as HI-deficient.