Following this thread! I'm very eager to try FUSE-T to see if it might resolve the issue I described here, but I'm hesitant to do so until the following (upstream) bug is fixed:
Original Date/Time is changed when Copy / View
More info here and in the FUSE-T wiki:
File access and modification times cannot be set separately as it seems to be an issue with the NFS client which always modifies both. Can be reproduced with 'touch -m' and 'touch -a' commands
@jwink3101 I'm wondering if you've noticed this behavior (i.e. previewing a file in Finder changes its modtime)? If so, I might suggest that this should be added to the list of Known Issues in the forthcoming docs.
I also just want to second the request for an rclone serve nfs command! Among other things, it would make it possible to natively mount an rclone remote as a "Remote Folder" on a Synology NAS (the only supported protocols are NFS and CIFS) as opposed to just a "Remote Connection" (which supports FTP, SFTP, and WebDAV, but only via the DSM GUI and not when connecting to the NAS via SMB). (rclone mount also appears not viable on DSM 7 due to this issue.)