they are pranking you don't worry it would not be on itch.io if it was a virus
this is what i got from the internet Considering Desktop Goose is not a virus, the freeware is safe to download. Trusted adware services like Avast deem Desktop Goose to be secure to use. PC systems can often prevent unrecognized applications from running with notifications that let you choose to either ‘Run anyway’ or ‘Don’t run.'