How would the humans and their civilisations deal with things like:
The almost 1D direction of travel within a habitat zone
The limited liveable space
Having to go near the hot and cold extremes for resources
Trying to explain how this happened in religions, spiritual beliefs, and various theories
Having to deal with the lifeforms evolved to deal with the paradigm of hot and cold on the planet's liveable portion
Being almost entirely glacier 🧊 meltwater habitat dwellers, which is almost like a coastal habitat for our world, except it is freshwater. This is easy to live in, but will give less specialisation prospects for civilisations to utilise. It would also need a lot of boats 🛶.
The high likelihood that it is a one nation world, as there is so little space to begin (only lightly on this as it is mostly its own question)