13-inch 2020 MacBook Pro has incorrect "default scaling" value (compared to 2012 MBP)
So it looks like all modern 13&quot; MacBook Pros do this. It has been confirmed in this MacRumors thread.

This change was likely made with the recent thunderbolt 13&quot; MacBook Pros.
This was most likely done in order to allow the user to &quot;fit more&quot; into the relatively small 13&quot; screen by default.

I find it strange for this to be the default resolution, because it is a fractionally scaled resolution. This means that the virtual pixels do not map perfectly to physical pixels. If the default scaling was set to the second box, as with older 13&quot; MacBooks, then a 1x1 block of virtual pixels would correspond exactly to a 2x2 block of physical pixels. With the new default scaling, this is not the case.
This leads to text which is slightly less sharp if you look at it up close. Why this change in default scaling was made, I don't know—perhaps Apple determined the loss in sharpness wasn't significant enough to discount it as a default option. Oh well, it's good to know anyway. At least my display isn't having an identity crisis.