Does OpenCV Have Gstreamer Support?

I am running Jetpack 4.3 on the AGX Xavier. I installed via the SDK manager and added all the software packages. I found on a forum that the built in version of OpenCV does not support Gstreamer in Jetpack 4.1. Is that still true for later Jetpack versions? Is there a way to check? I am considering following these instructions: but am unsure if it is necessary as it is for Jetpack 4.1.

We have gstreamer + OpenCV samples in source code package:
Please download it and try.