https://caloskao.org/rclone-across-transfer-each-cloud-drive-without-local-machine-bandwidth/
–drive-server-side-across-configs
Allow server side operations (eg copy) to work across different drive configs.
This can be useful if you wish to do a server side copy between two different Google drives. Note that this isn’t enabled by default because it isn’t easy to tell if it will work between any two configurations.