Maybe try enabling /etc/rc.local with systemctl and make sure the file is executable, like this: Container with nvidia.runtime=true refuse to start after reboot of the host - #4 by ashni
If that doesn’t work, you can create your own service that will execute /etc/rc.local on startup: https://www.baeldung.com/linux/run-command-start-up#bd-2-enabling-rc-local-service-on-modern-linux-distributions