As far as I can see, the T440p is the latest Thinkpad to support Coreboot/skulls.
If I wanted something newer (say, something from 2019-2022 or so) under $400, what could I even get? I want to run my own choice of linux distribution on it, so most chromebooks are out of the question (also I'd like something more powerful and upgradeable).
Thanks.
I did go over mrchromebox, and might actually go this route. We'll see if there are any newer chromebooks that let me replace chrome os with linux by the time I get to purchasing one