Insecure openh264 version still installed after updates

After reading the topic: Upcoming Freedesktop 23.08 runtime release will drop openh264 extension, and noticing the update is already published, I decided to remove the insecure extension, but a flatpak update pulls it again.

I have tried flatpak list --app-runtime=org.freedesktop.Platform.openh264 and flatpak list --app-runtime=runtime/org.freedesktop.Platform.openh264/x86_64/2.2.0 in order to see what other runtime or app is pulling it, but I get no results. How can I know what is pulling it to report to these projects that the dependency should be updated?

To find out what is pulling it run the command here org.freedesktop.Platform.openh264 problem - #2 by bbhtt

Thanks, the script didn’t detect org.kde.Platform/x86_64/6.6, had to use flatpak info -m manually to inspect all dependencies.

That runtime is end-of-life already, used by the badly updated com.obsproject.Studio. Will report the update is needed.