Unless you're talking about the color reproduction which I can't really comment on. Not really important for devs though.
Even windows has issues here and there with scaling. Apple really has the best tech here. That said, I switched from a rMBP to the Blade, wasn't excited about the new Macbook Pro's at all. It's a shame too, i've had 10 Macbook Pro's over the past few years, doubt i'm going back now unless the price really drops.
My current work setup is currently 2 1080p monitors, so to work around the weird scaling I just set the laptop display to 1080p when I am docked.
Point being, might as well just buy a laptop with equal or lower resolution to your external monitor(s).
Everyone else _has_ caught up with Apple. Windows 10 is actually pretty good, and Linux works great on most laptops now. There's plenty of options for developers.
I'm picking up an XPS 15 after the next refresh in January since it seems that it'll come with Kaby Lake H CPUs and (probably) an Nvidia GTX 1050.