Specific SFRs as a function of redshift. The green markers identify the ALMA targets from both of our clusters, with the circles for CL1411.1−1148 and the squares for CL1301.7−1139. The pink outlines show the galaxies with a low gas fraction, as defined in Sect. 4.1. The orange circles stand for the PHIBSS2 galaxies, with a dark colour for the systems at 0.49 < z ≤ 0.6 and a lighter one for the galaxies at 0.6 < z ≤ 0.8. The orange squares are for the Castignani et al. (2020) luminous infrared galaxies (LIRGs) with 0.45 < z < 0.55. The symbols in shades of grey are for the samples we took from the literature at different redshifts. We provide a zoom-in of the region delineated by the dotted lines (see inset), around the redshift of CL1301.7−1139.