Today you can track each link in your email, this is good, but on reports the click report is based on all tracked links. On most times you have a single CTA that is your real goal into the campaign, so the report on clicks is not really your goal.
So, if you add a "conversion / Goal/ etc. tracking link option, you can also add a real conversion or click in link report.

Today you need to create an audience in performance insights or download raw events for each campaign to get this information.