There is nothing to be turned off. rsync is not doing any versioning.
You seem to misunderstand how rsync is working.
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I’m currently using Duplicati.
It works well, files are treated as blocks, deduplicated, compressed, encrypted and stored in a (remote) location.
My knowledge is somewhat limited in this area but might be a good alternative for you.
Do a little research to see if it fits your needs.
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There’s an excellent comparison chart for various sync/backup apps on the Arch wiki. This link takes you straight to the “chunk-based” section, but the whole page is a good read. https://wiki.archlinux.org/title/Synchronization_and_backup_programs#Chunk-based_increments
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