A backend platform is difficult to compare feature by feature because auth, data, storage, and functions interact. For Appwrite, migrate a single vertical slice: sign-up, create a record, upload a file, trigger a function, and read the result as a second user.
Test permissions at each hop, including rejected requests, token expiry, and deleted accounts. Observe deployment and logs for the function, then export the records and files. If client SDK changes are required, include their effect on your release schedule. A candidate is credible when the whole user journey works and can be rolled back, not when each dashboard module has a similar label.