I think I used a ThinkPad back in 1997 when my Uncle had a laptop. But aside from that possibility I don’t believe I’ve ever touched one until beginning of this year.
I have a T520 at home as my linux box. At work I use a 2015 MacBook Pro.
I don't know.
I don't find the T520's keyboard to be any better than the MBP's. The differences in key placement are much more noticeable than any difference in key shape, travel, or response.
Am I missing something?
... and thanks to Linux, it runs like on the first day.
The integrated Intel GPU in my T520 is stuck on XDDM and never got an updated WDDM driver. So it can't run a modern version of Windows anyways.