Hi!
I'm developing WebGL games, primarly intended for mobile devices. In these kind of devices the JS "Navigator.Share" should be available but it needs the "web-share" value to be in the "allow" attribute of the itch.io's iframe for webgl games.
Here the W2C reference: https://www.w3.org/TR/web-share/#enabling-the-api-in-third-party-contexts
This feature will help to promote games via mobile native Social Share in a similar way to this image.
This image shows the navigator.share in Blue Stacks 5, Android 11 Chrome 103.
In newer browser the already mentioned "allow:web-share" is required.
Thank you for your time!