Now that you are interested, I'm happy to share more.
For context, I got this exact machine https://www.ebay.com/itm/134571642124 at $174, and did it because I wanted a cheap, 15.6" laptop with an accurate & high resolution screen that is more useful than an iPad Pro. A refurbished machine of this model almost perfectly fits those requirements. I installed Linux (Mint) because lots of things like window management and VPN are cumbersome on ChromeOS, and I want very little to do with Google. I didn't install Windows because memory is limited (8GB) and the experience wouldn't be good, but if it had 16GB I would have done that instead.
Issues I have run into:
* Keyboard layout
* Apparently Caps Lock and Esc keys are going to be a problem. And if you have a remote session where the remote machine has Caps Lock and Esc swapped, it would be a mess. As a (vscode) vim user, I ended up doing Ctrl+[ for Esc. (If I spent more time on it I probably would have figured it out)
* Also apparently, F11 and F12 keys don't exist, and it can be painful for debugging.
* You need to properly map F1-F10 as well.
* Audio issues -- there is a chromebook-linux-audio project that enables audio on chromebooks, and I know other people have successfully used it for this model but on a different distro. The project clearly says it does not support Ubuntu, and it indeed didn't work for me. Not that I need or care about audio on this machine dedicated to programming, but missing audio can be annoying at times when you need it.
* Power management. I don't know if it's bad for this model, for Mint or bad for Linux in general, but it's annoying. I think I have properly throttled the CPU via auto-cpufreq, but sometimes the fan runs crazy when nothing is happening. (Granted, that happens on well-supported Windows laptops as well, and I don't know why.) Then something is weird with suspend ("sleep") -- even after setting things up so that closing lid = suspend, after doing it, the laptop goes out of battery within a few hours. I have to manually suspend every time I am done to preserve battery.
Basically, I am seeing a number of issues with using the machines, some specific to Chromebooks, and some that may or may not be associated with Chromebooks specifically. I know it is always a bumpy road to use Linux on laptops, but this is rougher. It's probably not worth the effort, unless you really want to do that, like in my case. Or to put it this way -- if I didn't intend the machine to do lots of development work and I want to be in the Google ecosystem, it would have been a perfect machine otherwise.