Kubuntu 18.04 - FOR THE WIN!
I own three ThinkPads - a T450s, a T470, and a T470p. All of them are running Kubuntu 18.04. Couldn't be happier. I'm not bad-mouthing Windows 10, it's probably okay, but I do know it shamefully sucks up as much data as possible and sends that data to Microsoft servers - all in the name of make "Cortana" smarter (so Cortana can "...really get the know you!...").
When I bought my T470, I had to (to my horror) had to install Windows 10 because I needed to update the "Intel chipset" firmware. This was painful. Extremely painful. The installation too over 5 hours (from a USB stick) before the T470 could actually be used. Once the firmware was upgraded, I installed Kubuntu 18.04 - that took a total of 17 minutes.
Anyway, each to their own. I'm sure Windows 10 has many positive points, but it's not for me. I can do everything I need to do on Linux (some CUDA coding, games development using UE4, and a ton of Java coding).
I'm also still a sucker for wobbly windows :) Check out Andy Turfer's videos on YouTube - they're one of the reasons why I switched to Linux full-time.