The difficulty with questions like this is that we don't know what we don't know. To put a fine point on it, we don't know if the concept of Pi is unique to us

The difficulty with questions like this is that we don't know what we don't know. To put a fine point on it, we don't know if the concept of Pi is unique to us as humans. If we accept the premise that we are not the only species to evolve science and technology, we are still left with the question of how other sentient species might get their maths differently from how we did it. This idea gets explored a lot in science fiction. But we don't have enough of a handle on it to say anything interesting. It's just different levels of speculation and conjecture.