I have an old System76 netbook "starling," I think one of the first ones ever, whenever that was. Years ago. They were an Ubuntu shop then, and afaik still are; but I'm not. The first thing I did with it was to install the then current Fedora release.
F30 is on it now, but I can't say it runs. It boots up, and then freezes. Local people who know things tell me it just isn't big enough any more.
I got it to do email in waiting rooms; but I found I usually got my turn before I got into my email. That proved true even when the netbook was still quick; wifi in the places I waited was slow.
So I guess I can afford a risk: would CoreOS be able to handle Alpine (formerly Pine from UW) and a browser or two? Maybe even Pan??