I recognize that pin. It comes from the UP! Pin trading event at Disneyland Paris from 2019. Here in France this serie didn't sold out at the event and some pin are still on the trading board during pin trading events. They don't sell what's remains outside of paid events so they appears only on events trading boards.
I never heard of fake for this series. They are pretty easy to find here (on tables and event board).
Here are some photos of my authentique version if you need to compare
Envoyé de mon STK-LX1 en utilisant Tapatalk