Excellent. Thus it will reattempt to upload those that were aborted due to terminating the process but will not start from scratch.
This shows me which files are being currently uploaded, including their size, but nothing about the volume already uploaded in comparison to the total volume to be uploaded, correct?
Yes that is correct. Rclone would have to make a separate pass through everything to calculate that which it might do one day but it doesn’t at the moment.