Moving Folder between sites stop progressing, but resume even after cancelling it

The "Cancel" button in the Move process in SharePoint can give the impression that the operation has stopped, but in reality, some backend processes may continue, especially if the move is already in progress for large files. SharePoint and OneDrive use background operations via Azure BLOB storage, which can resume or complete transfers even if the UI is cancelled, especially for large files that already began copying. While Microsoft documentation mentions a 15 GB limit for cross-site moves, this limitation might not strictly apply in all scenarios due to backend improvements or inconsistencies in enforcement, and SharePoint may not always notify users when trying to move files larger than the documented limit. This behavior can lead to confusion, as the UI lacks clear communication about what is happening behind the scenes, especially with large files.