https://pub.dev/packages/google_sign_in does not have instructions for web. Instead it says to go to https://pub.dev/packages/google_sign_in_web.

• We should either just inline the documentation into the top-level package, like we do for other platforms, or we should have the other platforms also link to sub-level packages. Either way we should treat web the same way we treat other platforms.

The https://pub.dev/packages/google_sign_in_web instructions link to https://developers.google.com/identity/sign-in/web/sign-in#before_you_begin, which themselves say "The Google Sign-In JavaScript platform library for Web is deprecated" and that "new client IDs are now blocked from using" this library, which is concerning.

• We should make sure google_sign_in_web is using up-to-date libraries and documentation.