Hi Shiraune, our team is happy to answer any questions you have about working with our Cloud WordPress platform!
Unfortunately FTP access is not enabled for Cloud WordPress installations and the maximum upload file size of 256 MB is a hard limit, and we apologize for any inconvenience this causes you.
However, one thing you could try is reducing the overall backup size by excluding files or folders from the backup, such as the Uploads directory. This might allow you to generate a backup file that is small enough to manually upload through the dashboard.
Please let us know if you have any other questions for us!