You're right, Aurora doesn't allow that with an anonymous profile (not sure if it allows that even with a true profile).

However, an anonymous profile is enough to download banking apps which are a major blocker to switching to Free OSs.

According to other users, if you previously purchased an app through the Play Store, you can log in to Aurora Store with the Google account that you used to purchase the app, and then download it through Aurora Store. However, in-app purchases don't work.

https://www.reddit.com/r/CalyxOS/comments/jtq1xc/can_you_get...