In LinkedIn analytics, the "Clicks" metric counts any click on your post.
It's the total of:
Profile clicks - someone clicked on your name or profile picture
Media clicks - someone clicked on an image, video, or document
"See more" clicks - someone expanded the full post text
Link clicks - someone clicked a URL in your post
If you'd like more data about link clicks in particular, make sure to check out using shortlinks on Ordinal.