Technically, every smartphone is a computer. Sorry if you thought you bought a phone. :)

The difference is that this is a full fledged linux operating system instead of the proprietary crap that comes with ios and android.

The downside at this point is that it’s not in end user stadium but a lot of folks are working on making that a reality. If you consider yourself a tinkerer, chances are you might be able to test it, maybe on a non daily driver phone if you have an old one, especially if its out of support.