Had a look at your download and tbh I’ve not seen one like that before and couldn’t figure out how to play it (I’m no expert either, obviously!). I think it would be worth trying to make it playable in browser anyway as a lot more people will play it rather than download files from a stranger. If you’re not sure how to do that here’s the rough steps.
Go to Project > Export in the Godot editor, install the web profile if it’s not already there, and when it comes to naming your export file call it index.html like this:
I usually have it export to a separate builds folder just to keep things tidy, as you can see. Once that’s done you can zip up everything it exported and upload to Itch.
On the Itch game page, choose HTML from the “kind of project” dropdown and tick the playable in browser box on your upload:
Now when you view the game page it should embed and be playable right there and you can check everything works as expected.