I have configured it. It works fine, as far as pulling in tasks when creating branches and changing the status of the Jira issues via check-ins. What I am saying is that the section that appears on the right hand pane near Attributes, labeled Atlassian JIRA Extension does not appear in the MacOS client as it does in Windows:
On MacOS, even when the extension is running and pulling in data it appears like this:
There is no Atlassian JIRA Extension section. So field mapping does not do anything.