I recommend this: https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html#method-1-give-your-user-permissions-on-every-reboot
with that and also read the tipp after that I was troubleshooting my permission issues.
This should apply to gpu too.
https://lemmy.world/comment/10089750
This is how I did it.