Something doesn’t need to be the best at anything to be on a Pareto frontier. And (usually) no one chooses on a single dimension; they choose a point in many that maximizes distance from zero, scaled by their preferences, if you are thinking of it like a frontier.

Yes, you're technically correct (the best kind of correct).

I guess if you consider enough attributes or "dimensions" then any programming languages will be the furthest in some direction, including Go.