Linking in information architecture

Linking is the best way to integrate information.

You can provide value to an information architecture by increasing the amount of links. Linking increases the overall density of the information. This includes nebulous information architectures that exist in organizations. For example, at my software engineering job, I can:

Two-way linking has value

Should I link a ticket to a PR or a PR to a ticket? Why not both? You don't know what entry point a person will take. Make it easier for yourself and others to find what they need.