Left panel: comparison between computed iteratively through the M₅₀₀−Y_X relation and the hydrostatic mass, . The estimates are consistent within the statistical errors. The of SPT‒CL J2106‒5844 is ∼3.5 greater than (see Sect. 2.4.2). For this reason, the point is off the scale and its is instead shown with the black arrow. The black dotted line is the 1 : 1 relation. Right panel: same as the left panel, except showing the comparison between and . Error–weighted mean ratio and corresponding errors are reported in each panel.