no, rclone mount does not copy files on it own. you asked that in another topic and i provided the answer
rclone mount displays the dir/files in the onedrive remote.
it is your program/tool that decides what to sync/copy/move/delete and then asks rclone do perform that action.
the command you posted was wrong.
i shared the correct command, did you try it?
if my commanf failed, please post the command and full output.