Relationship between present-day light-weighted cold-disk fraction, galaxy stellar mass and infall time of Fornax galaxies (crosses) and cluster satellites of a TNG50 Fornax analog (circles). The left panels are similar to those in the bottom row of Fig. 8 but for only two clusters (Fornax and its TNG50 analog), whereby the fraction of disky orbit is estimated within 1 R_e (upper left) and within 2 R_e (bottom left). The right panels show the present-day light-weighted cold-disk as a function of galaxies’ infall time, but only in the mass range 10^{9.5 − 10.5} M_⊙, illustrated by red boxes in the left panels. In both observed and simulated systems, satellites that fell into the clusters longer ago exhibit lower fraction of stars in cold orbits.