I use TrueNAS, mainly because I wanted a solid storage solution. I don't really need many VMs, so I'm happy to run jails for stuff I need.
I also run a small RPi4 server with a few docker containers (a secondary Syncthing server, TVHeadend server, etc).
If I had a need for VMs, I'd run Proxmox (as I have some experience with it).
I use TrueNAS, mainly because I wanted a solid storage solution. I don't really need many VMs, so I'm happy to run jails for stuff I need.
I also run a small RPi4 server with a few docker containers (a secondary Syncthing server, TVHeadend server, etc).
If I had a need for VMs, I'd run Proxmox (as I have some experience with it).