Ironically this is now somewhere they could stand to improve.
The MacBook displays are excellent, particularly when it comes to colour reproduction, but for the past several years they default to a scaled display mode. For anyone not familiar, the frame buffer is a higher resolution, and scaled down for the display, trading sharpness for screen space.
Evidently the drop in sharpness is imperceptible to most people, but I can certainly tell, to the point where I forego the extra space and drop it back to the native resolution.
For a company that generally prides itself on its displays, I think the right option would be to just ship higher res panels matching the default resolution.
They have also done this with certain iPhone displays over the years, but at 400+ppi it’s well within the imperceptible territory for most people. For the 200-something ppi display on the MacBooks, not so.