Thicker bodies wouldn't work for Elves or Tieflings, since there's never been an obese Elf or Tiefling, Githyanki wouldn't also have thicker bodies either.
I don't mean obese or overweight, just a more stocky or soft body type, just slight variations in the current body type (like no abs), but within the race's norms of course, as I agree Elves and Githyanki would have the thinner body types.
Softer faces so like Link or a K-Pop singer?, cool
Yeah maybe, I don't know tbh, but something a little rounder/softer, as I think it would be a nice option to have.