These Thinkpads I ran it on are pretty old… the X41 came with Vista 
- wiped it straight away… the X201 had Win7 I think?
The X41 (or is it an X61 - I can’t remember) is stylus only - no touch… Ubuntu recognized the Wacom tech without intervention (Win7 involves hours of locating the right drivers from Lenovo)…
The X201 - “touch” it’s a circa 2012 model - and - the touch is like 2-3 points or whatever it’s called? Unlike modern touch screens with 10 points? I’m not sure what it’s called. Anyway - Ubuntu identifies the touch screen AND the Wacom digitiser “out of the box”…
I’ve got one of my iPads jailbroken (IPAD 3) and I can access the BSD *nix shell on it… it’s not Linux though (although it does support “apt” for installing packages I think).
Probably won’t jailbreak my iPad pro 12.9" - no need for it - mostly use it with an iPencil for drawing (my hobby - hence my earlier interest in the Lenovo X series tablet hybrids). Also got a few neat apps on the iPad pro - for Mosh and SSH to NIX boxes - along with the “ubiquitous” but exhorbitantly overpriced iPad pro keyboard cover… Sheeze I with Apple would let you use a mouse with an iPad!!! That’s one thing Android tablets have over Apple…