Those are exactly same products that are sold on Amazon.
You can buy exactly these same opnsense devices from Amazon.

Also I’m not sure what it was 10 years ago. But these days mini PCs is how most people homelab. 10w idle and enough firepower typically for most tasks.
Obviously pick modern AMD cpu and some fast nvme drive. Can’t beat minis

Nowadays I think most homelabbers are buying those n150 mini PCs from AliExpress. Specifically for opnsense