There’s two models - the Duet 3 which comes with a Snapdragon 7c Gen 2 @ 2.55 GHz CPU, and the 3i which comes with a Intel Celeron N4020. I would rather use the Duet 3, due to the cover, and since I am already familiar with the feel of the device due to having owned a Surface Pro 4, but I’d like to choose whichever works best for running Linux.
Edit: Just for additional information I’ll be using it as a note-taking tablet with xournal++, not for any heavy tasks
Snapdragon is an ARM CPU which means if you can find a distro to run on it, it’ll likely be an Android custom ROM, whereas Celeron is x86 and should run most Linux distros without issue.
This is not true at all. There are tons of Linux Distros running natively on ARM.
Debian, Ubuntu, Fedora, etc.