Hey Ashlee,
Thanks for reaching out!
The answer here is a sort-of “yes”, and sort-of “no”. It’s “no” in the sense that our plugins themselves do not have any pre-population features, unfortunately. 🙁
However, there is some basic pre-population that WooCommerce itself does in that last phase of the checkout process. If the customer is returning customer, for example, or has an account on the site and is logged into that account while making the purchase, then their billing/shipping details should be auto-filled.
I hope this information helps!
George