I don't think non-autistics are less curious. It's just that they have an entire dimension of life that they engage in and that we're not as privy to. Where we neglect social interests, we take a deeper interest in other things.

It is a common human trait, regardless of neurotype.

I have an unquenchable thirst for knowledge. I get down and depressed if I am not continually learning.

Personally I wouldn't say that curiosity in general is linked it to, but rather the combination of special interests, often being detailed-oriented, and (at least for me) the need to understand the how and why for whatever I'm doing drives curiosity (or least a greater level of questioning and learning than typical) in specific contexts/situations/topics.

I think it is. A lot of the other replies seem to be saying that we can't make accurate assessments about how curious others are and that's true. However, allistic people seem to comment on my curiosity more than any other trait. Most of my work feedback is about knowing when I should say "Idk but good luck 🙂🙂🙂" versus going on a journey of discovery with some one.

So maybe we are equally curious but they can control it better lol

Curiosity seems to be linked to being alive in general in my experience. Regardless of if I look at humans or other animals.

Being hyper focused on a certain task for a long time? That's a different story.

I think also part of it is a requirement of the condition. A non-curious autist would probably never get a diagnosis, and just assume they are bad at life and struggle severely. You have to be curious to notice your own differences, strengths and weaknesses, and find ways to work with them, rather than fighting them. We basically have no choice but to be curious, we can't take the straightforward easy path in life, and navigating the jungle requires problem solving skills and introspection.