I upgraded my ancient but still working Lenovo X1 Carbon yesterday to the latest version of Linux Mint 21.3 from 20.3 yesterday. The name of the release, Virginia, is particularly appropriate here in the Old Dominion.
It went well but took quite a while to get everything downloaded from my local mirror. The only hiccup was some confusion about what version was actually installed from the instructions. It seemed like the base 21, but on reboot was 21.3 so all good there.
I can’t believe how well the X1 Carbon has held up. The battery is pretty much shot but everything else is great. You really can’t beat those old Lenovo keyboards.