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GStreamer with OpenGL creates an empty "OpenGL Renderer" window on Wayland

Describe your issue

GStreamer with OpenGL creates an empty "OpenGL Renderer" window on Wayland. This can be seen with GNOME Shell's built-in screen recorder. We have worked around it with commit https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/575ba13b9b4efa40f07d57d87d50d8f0466f2e16, so for accurate testing this commit needs to be reverted locally.

Expected Behavior

GStreamer creates an offscreen surface for rendering.

Observed Behavior

GStreamer creates an empty, onscreen surface for rendering.

Setup

Operating System: Arch Linux (reproducible on any Wayland system)
Device: Computer
GStreamer Version: 1.20 & 1.22

Steps to reproduce the bug

On a Wayland system, open a terminal
Type gst-launch-1.0 gltestsrc ! gldownload ! waylandsink
Notice the extra "OpenGL Renderer" window

How reproducible is the bug?

Always reproducible