Not trying to sell you on it, you do what works best for you. Truenas scale is an operating system built on Debian. There will be no packages for it. It’s hard to explain until you start using it. I came from VMs on truenas core for many years and it was annoying to migrate to docker but after I used it for a while I liked it a lot more. It’s hard to explain without just using it, so if you’re not into playing around and what you have works great, then great. I’ve been working with jails and VMs and containers for well over 15 years since I work in IT so I’ve played with big and small systems. There are definitely some annoyances when it comes to the VM approach.