I am not who you asked, but lately it has been really frustrating for me that macOS locks portions of the filesystem when the screen is locked, which breaks rsync backups because they cannot read those files. I have been unable to find a way around this.

That being said, the security design that creates this problem is quite impressive, and I think much more tight than most people realize is happening on stock macOS. I just wish that I could unlock my whole home directory from the CLI somehow when I do my non-time-machine backup.