(I was sure I'd have complaints about the keyboard until I spent a solid month on one and then I raised that the old style keyboard just hurts my hands. It's a little less proof against spills, though the computer underneath is still fine about them.)
The other part is keyboard - I absolutely believe that if I used a T480 for a couple of weeks I could get used to them... as long as they were the ONLY thing I ever used. But that's not my use case. I have client laptop, and a lot of regular keyboards for my desktop and laptops. They all have the standard home row (Insert/Home/PgUp, Del/End/PgDwn). It's not that laptops have changed this pattern - it's that each manufacturer and even model changes it _differently_ (and seemingly needlessly), which makes it hard to have a consistent muscle memory for these keys:<
As for keyboards--that's why I brought my machine to clients when I was a consultant, and specify the same laptop at my new job. ;)