Installing Linux on any Chromebook needs you to put it into an "insecure" mode
After that it is usually reasonably plain sailing on an Intel one like this. In fact, if memory serves me right the Intel ones are supported by the standard Ubuntu installer.
Now Arm... that is not for the fainthearted. I have an Arm Samsung Chromebook hacked to Run Debian. The experience of installing it was like fighting a pig in the mud. The end result works quite well (though it needs a small protrusion on the back in the form of a micro USB-thumbdrive to be even remotely useful), but is definitely not worth the amount of effort you need to put into it.