And it can run Android apps with Waydroid.

As an owner and occasionally serious user of the above device, I can say that, no, it is not usable as a phone by any definition that includes portability. This is due to extreme bulk and still terrible battery life, even before we get to the experience of using PureOS and Gnome for your phone OS.

However, the kill switches are super cool and would be practical if the device were.