Y_gas–M₅₀₀ relation. The filled circles represent a compilation of literature data, color coded as a function of the sample reference as shown in the picture. The blue squares indicate the Y_gas derived from the stacked groups of Popesso et al. (2025a). The purple square indicates the value derived from the CHEXMATE clusters stacked in eROSITA data by Lyskova et al. (2023). The solid black curve represents our best fit to stacked points, including the CHEXMATE clusters. The dashed yellow and green curves represent the best fit of Pratt et al. (2009) and Eckert et al. (2016), respectively. The Y_gas = 1 corresponding to the Planck Collaboration VI (2020) value is indicated by the dashed black line.