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Very late reply, but hopefully this helps somebody in the future:

I still had a hiccup launching after installing with the itch.io app where I got a "The requested operation requires escalation" error.

This is probably more of a workaround, but running the setup.exe manually to install the game files into the same folder, and then removing setup.exe made it work with the app.  Removing setup.exe afterward was important because otherwise it would keep trying to run that as the game.