[2020] where are a screenshots stored?

The screenshots taken with F12 or /screenshot which do not include the HUD/UI and only work with a keybind while in a map, are stored in C:\Users\Username\AppData\Roaming\Diabotical\Screenshots you can paste %appdata%/diabotical/screenshots in the windows explorer address bar to be taken there, if you are in-game you can also type /homedir in the console to open your Diabotical appdata folder and then go to the screenshots folder manually

/bind KEY screenshot to set a different keybind

If it's unbound it gets automatically rebound to /screenshot when you restart the game, you can /bind f12 blank so that it doesn't