Complete multiwavelength view of XLSSC 122. We show adaptively smoothed XMM-Newton contours (white) overplotted on the HST F140W background. The cluster members are highlighted in gold and cyan, with the latter corresponding to star-forming and dusty galaxies based on the SED-fitting done by Trudeau et al. (2022). In between the cluster members, we visualize the SZ flux (<  − 2σ) as seen in the cleaned ALMA+ACA observations in blue. The beam size of the ALMA+ACA image (tapered to 5″) is shown in the bottom left. The red contours represent our most likely model reconstruction obtained by forward modeling two gNFW components to the ALMA+ACA+ACT observations. The figure indicates a clear morphological difference between the equation of state parameters traced by X-ray and the SZ effect.