• pretty much every modern Chromebook will be able to have Linux installed over ChromeOS. You might have to open it up and remove a write-protect screw.
I did exactly that. That thing with the screw is only for older models. I did it on a somewhat newer model and I had to open it up and disconnect the battery. Newer models need a SuzyQ cable to switch from ChromeOS to Linux. All of them need to run the MrChromebox script after disabling write protection. Well, except ARM Chromebooks. They are not compatible with the script. For some of these devices PostmarketOS is the way to go.
SOME models do work pretty good with PostmarketOS. Very few with all hardware features working, some with nearly all features working. Mostly classical laptop devices. Convertibles and tablets on the other hand work generally less good. Well of course there’s a gigantic shitload of devices that don’t even have a functional display and a even bigger pile that’s not even booting.