Do I Need to Recreate Datasources Manually?

No. Datasources are exported and reconstructed automatically.

However, because Cloud and Data Center differ in networking and authentication, you may need to update connection credentials or endpoints after the import.

Re-enter request header and parameter values on REST Custom Datasources if they are missing. Datasources whose JDBC URL sets properties PocketQuery Cloud does not allow are not imported and need to be created again with an adjusted URL.