I have been running TrueNAS (was FreeNAS) for ~10 years now and never had issues. There is the risk that TrueNAS gets rug pulled and no longer is free for non commercial use, but so far it has been fine.
The thing is, I'm still running FreeNAS 9, not even TrueNAS. If they rug pull, not only will there be forks, but the old versions should just continue to work!
