Where to find it
In the app, hit the paper plane under the post and pick Copy link. Only posts and reels work, stories disappear too fast.
One thing to check
Switch your account to public before you start. You can make it private again once everything has landed.
What views do for you
The play count is printed right on the reel in your grid. People skip reels with tiny numbers without ever pressing play, so a stronger count earns you the chance to be watched.