Also, the fact that this is a 15.6-inch display enables me to set zoom on VS Code and Firefox to 90%, still able to read everything but with more estate. I had an MBP Retina before and for the life of me I don't miss the extra pixels. I do miss the 16:10 aspect ratio, though.

Agreed, definitely. It's a game-changer.

Both of these comments are ditches alongside the road of truth. 4k on a laptop is not necessary, but it is noticeable and sometimes valuable. I have a 4K laptop screen and I like it a lot. I have a 1080p monitor and I notice the resolution (mostly on text), but I’m plenty productive with it.