A lens, not a label
You might already have a shape in mind. Maybe you've done something like this before and been told you're a circle, or a square, or something with a colour attached. Hold onto that. See if this agrees. If it doesn't, the gap between what you expected and what came back is where the real self-knowledge lives.
Or you might be thinking: I'm not a shape, I'm a person. Good. You're right. You're not a shape. You're every shape, at different times, with different people. This just picks out the one that's loudest right now.
Our intent in making this was simple: take a well-known personality test and turn it into something we'd actually want to take. We understand that intent and perception are two different things. If your perception differs from our intent, that mistake is ours.
There are no right answers and no wrong ones. Answer as the you that showed up today — not the you that you think you should be. If you take it again tomorrow and get something different, that's not the tool being broken. That's you being human.
You don't have to do this by yourself. Do it with a friend, a partner, a child, whoever's nearby. Read the questions out loud. Argue about the answers. The conversation is often more revealing than the quiz.