Reference to TTGL *-*
To be honest, I didn't understand how the game worked, I had to read the comments to understand. Once I understood it, I really liked it, it's very interesting. I played enough to buy almost everything. Maybe you just need to improve the tutorial.
When it is not in fullscreen, the window is cropped and part of the information does not appear. You can fix this in Godot's settings, go to Mode and put Canvas Item.