I think somewhere on the Pocket Reform site they describe it as a "sofa PC," more comfortable to use than a regular laptop, more capable than an Android phone running Termux.

I had an Averatec N1200, the smallest, lightest netbook made, and it ran OpenBSD without difficulty, so I'd recommend that over FreeBSD. I eventually gave it away because the Atom processor and two gigabytes of RAM and slow SSD became intolerably slow.

The keyboard was also very cramped, so while I still LOVE the idea of tiny PCs and netbooks, I'm not sure they can ever be comfortable enough to use.