This lies squarely with Google. I bought a fully functional 11 inch acer intel touchscreen Chromebook for 25 on eBay which got its last update last year. I converted it to Ubuntu which was a pain
I have a perfectly good chromebook for a few years ago that is just sat in a box becuase it's running a super old version of chromeOS.
I could just install Linux but the battery is definitely worse when not on chromeOS