No, they can't share data between two accounts.
If two people have their own scales with their own Wyze accounts they cannot share Wyze Scale X data within the app. Each user can only access their own measurements under one account.
However, while you are not able to share your data within the Wyze app to someone else's account, you can export your data from the app via email. This allows you to export your data into a spreadsheet to share as needed.