You have to be extremely dumb to even think of using unraid. It introduces a hard dependency on whatever you do and is nothing more than a glorious wrapper for managing docker services
Yes, mostly storage. But why? Storage == ZFS. ZFS cli is well documented and works extremely well. Don't use unraid or truenas or any other fancy UI. I know the appeal from the beginners but it's not worth it
You might be amazed to find there's a lot of good reasons the storage world moved away from the RAID4 model Unraid relies on. They're proprietary too, which isn't great if you care about recoverability or never being in a position where they can withdraw your license.