H_{2, deficiency}–HI_deficiency relations for low-mass (top) and massive (bottom) galaxies in clusters (left), filaments (middle), and the pure field (right). GAEA-mock data is represented by big circles, GAEA-all data by small circles, and C22 data by triangles. Each point of the GAEA-mock/C22 is coloured by sSFR. The vertical and horizontal lines show 0.5 dex deficiency levels used to separate gas normal from gas deficient galaxies.