Starlink is effectively geo- locked (at least) right now. Starlink satellites are scheduled to send internet down to all users within a designated area on the ground. This designated area is referred to as a cell. Your Starlink is assigned to a single cell. If you move your Starlink outside of its assigned cell, a satellite will not be scheduled to serve your Starlink and you will not receive internet. This is constrained by geometry and is not arbitrary geofencing.