Case: make full backup of system drive and save backup files to local OneDrive folder on second disk.
In this type we will have backup locally and second copy on OneDrive.
Current file size limit on OneDrive is 10GB for single file. Vbk files can be much larger depending on the type of the created backup.
I see two solutions. First add possibility to split Vbk to smaller files or better split vbk files and add backup target directly to OneDrive in Veeam Endpoint Backup.