I actually graduated with an aviation degree, and yes, there Is some minimal forward thrust, BUT that's not what slows/stops the plane. It's the "trash can lids" as we called them. It's the same as the plane momentum having to push big solid discs through the air.
In the sim we used to go full beta prop setting (to see if we would actually get enough reverse thrust to move backwards. It was just enough to get the slightest movement....and then...the engines would blow :p