I don't think I've encountered this smooth bulbous figure art in any other dynasty, or even under any other pharaoh. And while to some this may feel like still

I don't think I've encountered this smooth bulbous figure art in any other dynasty, or even under any other pharaoh. And while to some this may feel like still fairly similar to all other Ancient Egyptian art, it must be noted that concepts of trends in art or fashion were basically absent until the Ancient Greeks, a seafaring & trading nation. It reminds me more of ancient predynastic figurines so, combined with sun-monotheism, it all looks a bit like a "back to the roots" kinda thing. This was a really huge departure from tradition in almost all the ways. (It's so fun to speculate about all this.)