GCS to GCS Sync Dataflow

When syncing data between two GCS buckets does rclone copy the data to the executing device as a midpoint or does the data traverse through the GCP backbone without touching the executing device? What code/documentation could I look at to answer this question myself?

hello and welcome to the forum,

in that case, rclone copy should be done server-side.

run the rclone command and would see
INFO : file.ext: Copied (server-side copy)

and from the rclone docs

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