Another update, last time I posted I was on 6.11, I have updated unraid to the latest, the nvidia plugin alerted me that it needs to update, so I did that as well. Rebooted yesterday, still at 5% usage in tmpfs, we'll see....
Chiming in here as I also have this issue. Happy to help with troubleshooting, but just need some guidance :).
Running plex with nvidia driver, full tmpfs.
Thanks everyone!