Scaling relation for the sample of 297 PSZ2 clusters (1.5 × r₂₀₀ sample). The dashed black line shows the 1 : 1 line. The orange line represents our best fit using the Nukers method with α = 1 (see text for details). The green line is the fit using the complete Nukers method for a free slope. The shaded regions represent the 1- and 2-σ errors of the reconstructed parameters. The vertical red dotted line corresponds to the pivot mass of 6 × 10¹⁴ M_⊙.