Link in Profile is very similar to the Tap Bio Instagram Links Card.
If you primarily used the Instagram Links Card on your Tap Bio account, then Link in Profile will be perfect for you. There are no "cards" or different page types on Link in Profile as there are Tap Bio.
Link in Profile provides a landing page that features all of your Instagram posts that contain links in them. However, only posts you attach a link to will appear on your profile. Otherwise, they are hidden by default.
You can choose between a list or grid display for your page.
You simply add URLs in the captions of your Instagram posts, or add the links directly on your Link in Profile dashboard.
Here's a video that describes how it works.
https://www.youtube.com/watch?v=QT2hlU6vIiQ