I click on the launcher, it come up with the usual 'Do you want to allow this App to make changes to your PC' stuff like what you get when you first install a game, then, it doesn't even load. No Error, nothing. It only worked when I launched it straight from install.

Maybe run the shortcut you got for the game also locate the game where you installed it and try running the exe from there.

You might want post what you did to solve your problem....even if it was something minor, or seemingly stupid. It could actually help some else who had the same thing happen to them. Just saying....glad you got it working btw, it's a great game :)