Redshift distribution of the SPT-3G EDF-S clusters and other ICM-selected clusters in the SPT-3G EDF-S footprint. The SPT-3G EDF-S cluster sample (red hatch pattern) has a median redshift of z = 0.70 and spans the range 0.07 < z ≲ 1.6 + . The eRASS1 (X-ray, yellow) subsample has 167 clusters, a median redshift of z = 0.32, and spans the range 0.04 < z < 0.99 (Kluge et al. 2024). The 29 ACT DR5 clusters have median redshift z = 0.58 and their redshifts span the range 0.19 < z < 1.38 (purple, Hilton et al. 2021). We also compared to the SPT-SZ subsample of 21 clusters (blue, Bleem et al. 2015; Klein et al. 2024a). This subsample has a median redshift of z = 0.58 and spans the range 0.24 < z < 1.38. The SPT-3G EDF-S cluster sample significantly increases the number of ICM-selected clusters in this patch, especially at high redshift (z > 1).