I bought a used Thinkpad Yoga 370, with a 7th gen i5, 8gb ram (single slot sodimm, which is a real pity) which I later upgraded to 16gb. Also the pen slots right into the frame of the laptop for storage and recharging, so you don't need to carry it around separately, though it may be a bit small for some people. I personally find myself comfortable with it.

I went right to arch (btw), as I was on both on my old laptop and my desktop, the archwiki has a page dedicated to this laptop, listing which features work and which don't. If you mess around with the fingerprint sensor and python-validity package you can get it to work, but I don't use it anyway. The rest works out of the box, though I have never tried the modem (my version lacks antennas and the module) and the express card reader.

I use xournal++ to take notes in uni. I tend to make a huge journal for each course (easily 150+ pages at the end of the semester), so make sure to disable autosaves as sometimes they hang up the whole program while trying to save.

At first I was using gnome on wayland, which has pretty good palm rejection, autorotation and sensor/webcam remapping and works great out of the box in general. Later moved to i3 on xorg as somehow a tiling window manager made more sense to me on a touchscreen device (android is kind of a tiling window manager if you think about it). Currently on i3, using touchegg to use custom gestures for the WM and specific programs. I am currently wondering whether to move to hyprland as I noticed slightly worse palm rejection on i3/xorg when compared to gnome/wayland (still very usable though), but I still want a tiling window manager and customizable touch gestures, which Hyprland should have a plugin for.

I general I find this laptop great, the x1 yoga should be good too, but I have never tried it on linux.