What are examples of local optima in humans?

For those of you who don't know what local optima are (excuse my layman's German):

Local optima are organs or other structures that have evolved but are imperfect and, so to speak, have gone the wrong way. We can illustrate this using the metaphor of a hilly landscape. There is a certain upper limit (the height of the hills that cannot be exceeded). Furthermore, some hills are higher than others.

A local optimum occurs when one organism in one area is on a particular hill, while another is higher. The organism will likely never "move" to the other hill, because the generations between hill one and hill two would first have to "climb" through many valleys.

The (only) example I know of is that of the human eye. This works less well than an octopus's, but of course, the human eye wouldn't evolve into an octopus's over the generations, since the "journey" would involve many steps, and the intergenerational generations might be blind.

What local optima also exists in the human body?

Which animals, etc. do this better?

Ps: Please let me know if I messed up the definition or can improve it in any way.

I would be very happy if you would answer me!

Your OK Tcunez