I, personally, do not find macOS to be such a huge UI win that I will absolutely not settle for anything a jot or tittle less. Especially now. Work makes me use a Mac, and while the UI is nice, recent macOS is much more full of jank and bugs that ruin the experience.

I grew up on old-school 90s Linux, where part of the fun was deciding which program you wanted to compile from source to accomplish a given task. So I may be biased... but I gave my girlfriend, a long time Apple user, an old laptop off of which I'd scraped Windows and put kubuntu on instead. She loves it.

Oh, and as for build quality, ThinkPad > Mac. Recent x86 Macs are glued-together pieces of shit that are optimized for being thin and light at the cost of all other concerns. They do not have adequate cooling, and when heat accumulates it has a tendency to break down the glue holding the system together.

I haven't evaluated the X1 Carbon, but my T450s is still screwed together. It's plenty thicc, but actually quite light in comparison to its size. It can also take a beating.