I certainly have. This is before jaw and chin reduction:

And this is after:

Half the height of my lower lip is gone! It is also much thinner and flatter now and it has lost its curl (you can't see the curl in these pictures though, because I'm smiling).
Also, my lower lip is incredibly tight and I have trouble speaking clearly sometimes even two years after FFS.
Is that supposed to be normal, somehow?
Edited to add side view pictures that show things more clearly.