Not a fan of Chromebooks.
On the whole too little grunt (cpu), too little memory(ram) and inferior build quality.
ChromeOS is pretty irritating too but that might not be the case for some 50 years younger. :)
Some years ago I purchased a new Chromebook for a song (roughly what it was worth) but low battery life, rubbish keyboard, a lower peculiar screen resolution, slow response and inobvious interface choices put me off but I fiddled with it until I decided to reflash the firmware to run Linux (it was an intel celeron.) Even Linux wasn't fast. Installed Win10 out of sheer perversity - surpringly didn't run much slower than on other real laptops.
Last few years has sat gathering dust with some odd Linux distro installed.
Modern Chromebooks are apparently so locked down that they cannot be repurposed in this manner.
If you actually want education notebooks to have a decent lifespan the up the specs - faster cpu/gpu, reasonable ram, better build quality and repurposable. Upgradeable and reparable would be nice too.
Higher unit costs but might be cheaper in the long term.
One obvious option is to give the devices to the students so they literally own them and hopefully if decent hardware they might take better care of them. Unlock them at the end of their course.
I never really understood the need for devices of any type in the class room. Outside the classroom as a research tool and document preparation tool I can accept.