Comment by stonogo

No, it's not that well integrated. They don't call it 'tags' but they work exactly the same way. JIRA, the most commonly cited example in this thread, has a whole separate engine for it and your JIRA admin builds the ticket flow manually. All the way back in RT this sort of thing was handled by a cron job. Github leveraging actions to accomplish this isn't much of a difference.

P.S. I didn't ask