As others have mentioned, perhaps while the metaphor is weak, your spirit is strong!
My kid’s Chromebooks (I purchased for them before the school provided) reached EOL before they finished elementary school.
I installed Linux (Gentoo) so we could continue using them. When power is correctly configured, they were very cool to use as a quick tool to search for something, answer an email, write a quick document and other simple tasks. They did not work well as workstations as an old Thinkpad might.
Since they are so light, and the battery lasted forever, we would leave them on a counter, and pick them up as needed.
The biggest roadblock will be whether the bootloader will allow another OS. You should be able to search xda forums for your device as a start.
Linux can be installed on ARM, no problem.