Well any species would be a product of their environment but I think the logic that bipedals with arm like appendages would dominate the world isnt far fetched.

And as you say they would likely not have unneccessary stuff like 3rd eye or 2 sets of arms since evolution is basically the system of good enough anything above that is a waste

So something might start out with 3 eyes but would eventually lose it as standing up and bejng able turn around is good enough to survive and propagate