Boards issue detail view no longer shows "Add Link" button as it did in previous versions

Summary

Boards issue detail view no longer shows "Add Link" button as it did in previous versions

Steps to Reproduce

1. Install Jira Software on a 7.1.x version (7.1.6 or 7.1.9 for example)
2. See that the issue details view does have this Issue link section of the page and a distinct "Add Link" button on this page
3. Upgrade Jira Software to 7.2.0 or higher
4. Check issue detail view again for this button

Expected Results

Would still expect this button to exist on that page in the same way

Actual Results

This button and section appear to have been removed from this specific view starting with Jira Software 7.2.0 and higher.

Notes

Customer reported this as a regression when testing upgrade from 7.1.6 to 7.4.3. I found that my 7.1.9 version also contained this view, but that the default Jira Software 7.2.0 versions do not have this specific view.

Workaround

You can still add links in the issue detail view. However in order to do this you would need to click the ... (More) menu button and select the Link option.