Changing the animations when transitioning from mixed immersive to full immersive mode.

Hi,

I'm building an app where I want to transition from mixed reality immersive mode to full immersive mode when a user taps on a portal.

Right now, what I have is this:

When a user taps a portal,

1. I will expand the portal mesh to show more of the world for 2 seconds.
2. I then remove the world component from the world the portal is showing to place the world in the mixed immersive space.
3. I remove the portal object from the scene.
4. I then change the immersive mode of the ImmersiveView from mixed to full.

However, the last step will cause Vision OS to play an animation that fades to black and eases in the scene from the center.

Is there any way I can control this animation or is there an easier way to use portals to go into a fully immersive scene?

I feel like portal component is built specifically for this but it doesn't have the functionality to click right now.