What feature is recommended to enable for effective sharing of availability information between platforms?

Enabling Google Calendar Interop is highly recommended for effective sharing of availability information between different platforms. This feature allows Google Calendar to seamlessly interact with other calendar systems, such as Microsoft Exchange and other calendar services. By providing this interoperability, it ensures that users can view and share their availability, schedule meetings, and coordinate events across different calendar applications without encountering compatibility issues.

This is particularly beneficial in organizations that utilize a mix of different calendar services, as it facilitates better communication and collaboration. Users from different platforms can see each other's schedules, which minimizes the chances of double-booking and enhances overall productivity. The integration streamlines workflows and helps maintain consistent scheduling across different environments, which is essential for effective teamwork.

The other options do not directly address availability information sharing between platforms in the same way that Google Calendar Interop does. For instance, Google Drive file sharing pertains to document sharing, Google Chat integration relates to communication tools, and Google Docs collaboration focuses on collaborative document editing, but none of these directly enhance cross-platform calendar availability sharing as interop does.