Can you allow noappledouble and noapplexattr to work on non-Apple OS?
Longer version:
I'm filing this under suspected bug because I feel it's a bug/oversight rather than a feature request.
When mounting a remote which is shared via sftp, samba (samba can be configured to ignore them too) etc, and then subsequently accessed via a Mac, lots of ._ files are created as expected and since rclone already has the ability to ignore, why not make the options available to all?