Currently, users can create two-way connections between items in separate boards with the Connected Boards column, or one-way a link with items within the same board.
Proposed update: Allow users to create two-way links within the same board using Connected Boards columns. This already exists in Notion.
Use Case: Being able to track relationships between Contacts within the Sales CRM. In Notion, I’m able to track who knows who within one database. When I link Person A to Person B, a mirror link to Person A automatically appears next to Person B in their row. This allows me to easily track networks of people in Notion. Monday.com should include this basic functionality.