It's actual 4k, but the game is in windowed mode by default. Most people prefer it that way, but you can change it in the settings.
cool it's just weird that a 4k window doesn't fill a 4k screen, other games that have opened or accidentally switched to windowed tend to spill over to my other monitors, I guess renpy just forces it to be smaller than the screen it's on
Yeah, I've made the same observation, it's actually pretty hard to get a renpy game to stretch to the full screen by hand 😅
