I know what you mean about the Chromebook. If I had one lying around, I'd install some different distros on it. They are suited for it. The best way to install Linux on a Galaxy Note 9 and be able to use it with a monitor, mouse and keyboard is to use Termux. There are several different ways to do it. The first time I just copied and pasted source code from some websites until I got it running. Then I had to find a VNC Routing program that works with Samsung Dex[Multi-VNC], so I could use it like a Desktop. You'll need to download F-Droid(for many reasons, if you haven't already). Use F-Droid to install Termux(not the Play Store). It won't work with Play Store version. Install Termux. The second time I installed a linux distro, I used an app call Andronix(play store/free). It will almost walk you through the linux installation process. It also allows you to choose between different distros from Debian, Ubuntu, Mint, etc. After that you can choose you GUI(XFCE4, LXDE, etc). Let it install, and then use Multi-VNC to view your new Desktop. There are easy instructions for the VNC part. All you have to do is search Galaxy Note 9 and linux, and a bunch of ways will pop up. For some reason the Note 9 seems to be perfect for this type of project. In the VNC app the address should be 127.0.0.1:5901 [ Address: 127.0.0.1 Port: 5901 ]. Let me know if you get stuck somewhere, or if you can't get the resolution of the desktop right. There are a few things that have to be sorted out depending on how you do things. Thanks for your interest in my project. I am not new to linux, but I am just now getting back into it after about 10 years not running it, or installing/administering it. Good Luck ! ! !