This setting is enabled in Git Integration for Jira Cloud app by default.
This setting is turned off by default in Dev Info for Jira Cloud app.
Show Git Commits Issue Tab and Project Page
This setting will enable/disable the Git Commits Issue tab and the Git Commits Project page. These locations show the list of git commits associated to the Jira Issue and Jira Project, respectively. The list is grouped by repository and sorted by commit time.
For more details, see Features: Git Commits Issue tab and Project Page (Jira Cloud).
The View developer tools permission is required to view the Git Commits Issue Tab and Projects Page. Jira users must also have the Browse Project permissions to a project associated with a repository to view.
After all the settings have been configured according to your requirements, click Update to apply the changes.
More General settings options
Git commits issue tab and project page (this page)
Issue git source code panel setting
GitKraken integration settings
Jira development information settings