I'm A Banana
Potassium-Rich
Thanks
I wasn't certain because the Sentinel feat says "Creatures within 5 feet of you provoke opportunity attacks from you EVEN IF they take the Disengage action before leaving your reach."
So I took that as OP anyone moves away from you
It's less about Sentinel and more about the reading of Mobile and Fancy Footwork: "Can't Make Opportunity Attacks" = can't make opportunity attacks even if someone provokes them.