Create incremental backups without .zip or any compression and below has my thoughts on this. Basically robocopy, xcopy, etc. have their approach (and can’t do what Duplicati does), and (at least now) vice versa. Programs typically do what they do, and try to do it well without trying to offer huge variations on the design.
Possibly some of the programs I cite may help your use case, especially if you’re doing local backups, and NTFS links are an option. If you’re seeking completely independent multiple full copies, that’s a lot of space.
Duplicati heads in the other direction heavily, by default, but –blocksize can reduce deduplication, if desired. Main reason would be performance. The core design of chunking source for repackaging is always there…