I've installed the latest beta on my Pixelbook. And when I open it and click on menu and then Easy Install, once I try to interact with Easy Install (click to choose books to download and then download them) it crashes the whole system hard. I have to restart my Pixelbook by pressing and holding the power button for 3-5 seconds and then hitting it again to restart it.
Sometimes it crashes just opening Easy Install. The first time it was after I added my user name/password. It also happened after clicking check boxes next to books. One time I got that far and it crashed when I hit the download button.