I kinda feel the same way
When I think of a hybrid, I imagine the body parts fit well together in a sense it could pass as a natural creature

While, when I think of a chimera, I imagine very different body parts from clearly different creatures, as if it had been assembled like that

Oh, he's still fat, but he's not quite as fat as the other two, at least in the current interpretation of the characters

I still gotta actually redraw him, but he's the same species as Grarem

Here's an old drawing of him:
www.furaffinity.net/view/57571691/