That’s what I was thinking too, but I did encounter a Godot project that started on page load, see here - https://yahhcheee.itch.io/pic-a-ball
This is what got me thinking that I did something wrong with my settings. I did exported the Godot project for web, which I’m pretty sure makes it an html5 embedded game. It have an “index.html” file and was uploaded as a .zip file.