I actually disagree here, I believe a sandwich has to be thin enough in at least one dimension to facilitate a cross sectional bite with a normal amount of mouth opening.
Nobody should have to unhinge their jaw like a python to get a good bite of a properly made sandwich!
I feel I might be misunderstanding the scale of what I'm looking at, that looks like a perfectly reasonable example of a proper sandwich, easily held, able to be bitten in cross section without unhinging the jaw, unless you want to eat it vertically like a more orally painful version of the tumblr burrito rant.
And like all those prepackaged sandwiches, all the filling is purposely piled in the front to look like it's filled, while the back is just poorly cue sub bread and nothing else.
Let's see a real cross-section of that sandwich, where we can actually see inside. I'd bet $10 that is looks more like this:
https://i.imgur.com/rgGljaK.jpeg
I wish you were right. But overpriced restaurants that serve burgers with a vertical height challenging to most intermediate pole vaulters would suggest otherwise.
I actually think Burgers are often the worst offenders here
The point of it being a sandwich is that you can hold the whole thing or at least whole segment you're monching in your hand, those super stack burgers are so big they need to be held up so that they don't collapse under their own weight
That's not a sandwich, that's a pile of meat cheese and assortment with a side of two slices of your choice of bread or roll.
It can be delicious without having to be a sandwich, let it be it's own beautiful mess of uncontained food that struggles to remain stacked even when laid back into a container