The best thing about cross-linking between Git and an issue tracker is that when you have multiple commits for one ticket (very common), they can all link back

The best thing about cross-linking between Git and an issue tracker is that when you have multiple commits for one ticket (very common), they can all link back to one ticket. Having the extra context from discussion is useful, but obviously that can be summarised in the commit message. So being able to instantly get a list of commits that link to the one ticket is the really invaluable feature that I don’t know of any good way of doing another way.