Yes, if you parachute from the outer atmosphere, you will indeed slow down as you get closer to Earth due to the increasing thickness of the atmosphere.
As you descend from the outer atmosphere, where the air is very thin, you will initially experience very little resistance or drag. However, as you enter denser regions of the atmosphere, such as the mesosphere and the stratosphere, the air molecules will exert a greater force on your parachute, resulting in increased drag.
The drag force acts in the opposite direction to your motion and gradually reduces your speed. As you continue to descend and reach the troposphere, which is the lowest and densest layer of the atmosphere, the drag force becomes even stronger, further slowing you down. Eventually, you reach terminal velocity, which is the maximum speed at which the force of gravity pulling you downward is balanced by the upward drag force.
It's important to note that the specifics of the descent will depend on various factors, such as the design of the parachute, your initial speed, and the atmospheric conditions at different altitudes. However, in general, the increasing thickness of the atmosphere will cause you to slow down as you approach Earth's surface while parachuting from the outer atmosphere.