Rclone two directories but not strict

I have 2 directories which I want to keep synced. However, the target directory I compress the files (.xz). I don't need rclone to decompress the target file and figure out if something isn't synced. I just want rclone to 1) see if file exists with .xz suffix 2) if modified time matches between source and destination.


rclone check or rclone sync --dry-run