Using the api from an IDE really doesn't matter. Even if you have an installed application that is not hosted on a website you still need to enter this information. Users of your application still need to find the website of your company or application, and the information containing your privacy policy. Just point it to the home page for your application on your companies website and make sure to put up a privacy policy page as well there are several projects around that show format of GDPR compliant privacy policy.

The form in question is used for Oauth2 credentials. When the user grants consent to your application they need to be able to find some required information about your application.

• Application homepage: Link to the home page for your application,
• Application privacy policy link: Link to the privacy policy for your application.

gsuite

If you are a gusite user you can set your project to internal only meaning that only users on your gsuite domain will be using it making verification a bit easier.

However i dont think that it matters you will still need to put something into these fiels.