Using the same code formatting (see JAVA-3922) is great, additionally we may (or may not) want to share IntelliJ IDEA settings via a separate (private or public) settings repo as specified in https://www.jetbrains.com/help/idea/sharing-your-ide-settings.html#settings-repository. This way we can additionally share other settings, e.g., copyright settings.

The settings repository should be used by everyone's IDE in a read-only manner after the settings has been committed to it, unless the intent is to update those shared settings.