> They want to see what you do with the link they gave you.

Except they didn't give it to me, my partner/sibling/parent/friend did, in a message sent through their app. We should expect that kind of interaction, to not be tracked; should expect, but obviously can't expect it today, these news are not surprising.

This is just one more aspect of their tracking that may be non-obvious, and that it's good to know about.