Hi, thanks for your feedback.
You seems to have the same bugs sol1van had, so it's a copy paste...
Full screen: F11 key should works, the game app version runs chromium like Electron apps.
Options: when you rebind keys, you must use the enter key to save. You will hear a sound playing.
I don't know why the jump button don't work, did you have the same bug with the web version? Tell me more about your config plz so i can search a fix.