In article ,
RichA wrote:

Are there any (Windows) Notebook PCs with a 4K screen (RGB pixel matrix,
not RGBW)?

there are, but it's a waste since you won't see a difference over a
standard retina display, which is already higher resolution than what
the eye can resolve.

There's an 8K Dell out now, $3700. It's 32." Pointless. It should be 60."

he said notebook pc, not a desktop.

32" displays and certainly 60" are not in any way a notebook computer.