In the tab, check Android 10.0 ("Q") (API 29).

Example:

// ...

Android 10 fundamentally changed how apps interact with user data:

If you are setting up a build machine, you must define the ANDROID_HOME environment variable.

Even if your targetSdkVersion is below 29, users with Android 10 devices will experience changes. Always test your app on an Android 10 device/emulator regardless of target SDK.