I’m curious what issues you had with TrueNAS? I’ve been using it for about a year now and the only issue I have had has been with one of my pools deleting itself after a reboot, but that was user error because I put the wrong SED password in the settings.
I manage a fleet of thin clients for our organization. We have been buying and managing them for 10+ years. They are a huge cost savings over desktops for shared environments (I work for a company in the manufacturing space). For users that do nothing other than log in and check their email and update a spreadsheet, being able to shove 10+ user sessions on a single VM is much more cost effective than deploying and managing a full desktop.
Plus, these devices can connect to Cloud PC’s, so users who need a dedicated machine can use these too. I have been using a Cloud PC for over two years now for all of my job functions and love it. I would happily take one of these devices, as all of my company issued devices are just used to connect to my Cloud PC.