Galaxy clusters are powerful probes of cosmological models, and an essential component of the cosmology analysis plan of DES, and the upcoming Legacy Survey of Space and Time (LSST) at Vera Rubin Observatory. In this talk, I will briefly overview the methods and results from DES on galaxy cluster analysis, and then discuss how these analyses have informed preparation for LSST-based cluster analysis within the Dark Energy Science Collaboration.
[Slides]