Can --suffix be applied to any copied file without --backup-dir

Hello, I'd like to ask one small question:
does --suffix flag apply only to those files that are moved in backup-dir?
if i just copy a file text.txt to remote with flags --suffix -test --suffix-keep-extension
I'd like the file to be renamed to text-test.txt
would it work like that, or would it have no effect?
Thanks

welcome to the forum,

well, not to any file, just to a subset of files.
files which would have been overwritten or deleted will have the suffix added to them


rclone copyto text.txt test-test.txt