I noticed that theres many areas where the text isnt in English.... is this intended? (like the arena, the costal fort, etc)
Those areas may as well just be blocked off (not trying to say anything bad by the way)

The official translation just hasn't caught up yet. There's a machine-translation-tool (https://tetragramat.itch.io/lonarpg-mtl also linked on the game's main page) to give a basic translation. While the MTL-translation isn't very nice to read, it at least lets you understand what's happening.