Side question: Why do people buy baguettes? Do they make sandwiches with them? How do you even make a sandwich from them? How are you meant to beat a baguette???

Side question: Why do people buy baguettes? Do they make sandwiches with them? How do you even make a sandwich from them? How are you meant to beat a baguette???

The rectangular loaf was designed for packing efficiency. Once bakeries became a thing and moving bread over distances to supply people became more and more common bakers realised that bread isnt heavy, its bulky and packing efficiency was an easy way to reduce costs
Okay, why not hexagon shaped bread?
Ease of manufacturing the bread tin. Ease of extracting the baked bread from the tin. Hexagons do not pack better than squares.
How high are you stacking your bread
Depends on how high I get first.
Because you can stack rectangles into bigger rectangles, can’t really do that with hexagons.