No, the boost controller has the wastegate normally connected to atmosphere. When the boost reaches the set point, it switches the valve so that the wastegate is now connected to the intake rather than atmosphere so the gate opens.

It is a bleed on system, the wastegate doesn't see any pressure until the controller says so. This is the same as an air injector which when closed doesn't present any pressure to the actuator.

A bleed valve simply continuously diverts some of the pressure away from the actuator, as soon as there is boost there is pressure supplied to the actuator.

Rick