I ran Ubuntu (Unity versions) on a couple of Tablet “hybrids” from Lenovo - Thinkpad X41 and X201…
X41 is pen input only.
X201 was touch and stylus - but even with Windows on there - or Linux - touch didn’t work so well… So - I can’t really compare it… but it was “usable”… Ubuntu was easier to install and get touch/wacom working - “out of the box” - with Windows it was nightmare of finding the right drivers from Lenovo and plugging and praying…
Personally - I’d 10,000x rather run Linux as a touch OS than Windows - for a while, at one job, I had to use a Surface Pro 3 - and Windows is really crap at “touch” IMHO… basically I used the Surface as a laptop - external keyboard - external monitors etc…
I wouldn’t mind trying out Linux on a Surface device if I had access to one (I’d put Linux stickers all over the MS logos!)