ESC key destroys full screen hold, please toggle fullscreen in the main menu or using the pause menu (P) if the fullscreen is broken.
pressing some browser keystrokes and shortcuts like control+F(find) will override game controls and make you lose mouse focus, this is being resolved and is a side effect of using Tauri to wrap the game. Remember this is technically just a fancy website, it is built with typescript, react, CSS, and HTML. Expect other shortcuts to work and break the game as well, just try to avoid them for now and if you get a ruined run just reset the game.
Toggling AI is for testing purposes and not a fully fleshed out toggle nor will it be in later builds. Graphics options are for you to play with, I have recommended settings on startup, pixel scale 2, fov, lighting, vignette, fog etc. There is an issue where you need to click on the slider value to set it, as dragging and holding is not currently working( it was causing too many calls per frame and overloading the audio system and REACT)