I've been using linux as a daily driver on my convertible for almost two years now. I started with using Manjaro and Gnome which worked really well, I especially liked the gesture support, but I heard kde also has good support for that. I switched to a tiling WM a couple months ago because I don't use my touchscreen that much (still works great with it though). I suggest going with any distro you like and using Gnome. All in all I'd say touch support is great. The only issue I ever had was when I used a second monitor the touchscreen wouldn't get mapped to the internal one automatically, but that was easy to fix
I never had that problem on Gnome, only with i3 and a couple other WM