Does CubeBackup maintain folder structure when backing up Google Drive/Shared drives data?

Folder structures are well kept

CubeBackup maintains all folder structures. However, the folder structure in the backups is maintained in SQLite files, not as physical folder structures. You can easily verify this by restoring a folder. (The restored data will be placed in a separate folder named "restored ", so there is no need to worry about overwriting your data.)