Nice game!
But it's kinda weird that I can actually plant floating dandelions, lol. One more thing, the window placement is quite off.
If it's not a bug, here's how you set the window placement:
1. Open godot engine and open your project
2. Click on "Editor" located at the top menu bar
3. Go to "Window placement" located under "Run"
4. Set the "Rect" to "Centered"
Hope that could help, dude :)
Edit: setting the "Rect" to "Force Maximize" might also work
Edit 2: this only works in the editor ( sorry about that ). See below comment