No processes showing after installation, though clearly using gpu

[gregbert42]

I am running plexserver, and it is clearly using the GPU (the GPU memory usage grows considerably when I transcode), however still no processes show up in nvidia-smi

Linux x.y.com 6.6.30-2-lts #1 SMP PREEMPT_DYNAMIC Tue, 07 May 2024 21:45:29 +0000 x86_64 GNU/Linux
product: GK208B [GeForce GT 710]
NVIDIA-SMI 470.239.06 Driver Version: 470.239.06 CUDA Version: 11.4

docker-compose.yaml:

services:
plex:
hostname: Fracta
container_name: plex
dns: 8.8.4.4
image: linuxserver/plex:latest
restart: unless-stopped
network_mode: "host"
runtime: nvidia
deploy:
resources:
reservations:
devices:
- capabilities: [gpu]
devices:
- /dev/dri:/dev/dri
environment:
- TZ=America/New_York
- VERSION=latest
- PUID=1002
- PGID=90
- PLEX_UID=1002
- PLEX_GID=90
- NVIDIA_VISIBLE_DEVICES=all
- NVIDIA_DRIVER_CAPABILITIES=compute,video,utility
volumes:
- stuff

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 470.239.06 Driver Version: 470.239.06 CUDA Version: 11.4 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 NVIDIA GeForce ... Off | 00000000:09:00.0 N/A | N/A |
| 50% 42C P8 N/A / N/A | 304MiB / 978MiB | N/A Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+

[edit] additional information.
sudo fuser -v /dev/nvidia* shows the processes

                 USER        PID ACCESS COMMAND

/dev/nvidia0: remote_fs_user 39330 F.... Plex Media Serv
remote_fs_user 39797 F...m Plex Transcoder
/dev/nvidiactl: remote_fs_user 39330 F.... Plex Media Serv
remote_fs_user 39797 F...m Plex Transcoder
/dev/nvidia-uvm: remote_fs_user 39330 F.... Plex Media Serv
remote_fs_user 39797 F.... Plex Transcoder