Is it true that in the past people who had more weight on them were considered more attractive because it indicated that can eat well/had money and thinner people were considered less attractive? If no, where did that come from or if yes, when did that change?

u/chocolatepot and u/cdesmoulins previously provided answers to similar questions for medieval Europe through the 19th century here and here.

u/Tiako answered a similar question in the context of ancient and east Asian history here. Their response also includes a relevant qualification about the extent to which we can draw inferences about what past cultures found attractiveness based on the art they left behind.