From my experience, it does make it easier if you need to compare similar foods.
For example, I want to buy a yogurt with highest amount of protein. Serving sizes may vary between 150 and to 500gr. With standardized labels it is very easy task.
In my country we have calories listed for both 100g/container and nutrients are always listed for 100g and sometimes for full contaiber. I almost always use 100g part.
For number 5, I can use items of weights 3 1 1 1 1 and they are not equal. If you remove 3, you get 1+1=1+1 and in case you remove only of 1s, you can split 3 = 1+1+1.
> slight stagger in the correct direction for each hand would be best
Thing is, if you have split keyboard with no stagger (grid) or vertical stagger, you can adjust halves of keyboard to suit your needs. This way you can make virtually any angle. Something like this https://www.zsa.io/moonlander/
> page up, page down, and end are on the left so that it is symmetrical
This is actually nice layout. I also see how can this be useful in gaming (few additional keys for pinkie).
Note that on normal keyboard all alpha keys are staggered to the left. For both hands. So, this stagger is not helping you to keep your left hand at correct angle.
"Grid" ortholinear is not an ultimate solution either, but it is more comfy (from personal experience).