Gtk very broken, ubuntu control center crashes 'playbin' element not found

[Haui]

Right click on desktop "display settings" does nothing, using gnome-control-center display or gnome-control-center throws the following error:

16:20:10.6842 GStreamer-Play[41314]: ERROR: GtkGstPlay: 'playbin' element not found, please check your setup
Trace/breakpoint trap (core dumped)

I am using 23.04 but it did work at the beginning. I assume it might have broken when I hastily reversed a pipewire->pule audio mod (had to disable pipewire in 22.10 since RDP would give no sound) since my microphone didn't work at first. Now everything works but the gnome control center (and my webcam which I newly installed but not sure it's connected).

Similar to: Bug #2017498

1)
Description: Ubuntu 23.04
Release: 23.04

2)
gnome-control-center:
  Installed: 1:44.0-1ubuntu6
  Candidate: 1:44.0-1ubuntu6
  Version table:
 *** 1:44.0-1ubuntu6 500
        500 http://de.archive.ubuntu.com/ubuntu lunar-updates/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu lunar-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:44.0-1ubuntu5 500
        500 http://de.archive.ubuntu.com/ubuntu lunar/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu lunar/main amd64 Packages

3)
I would expect the command center to just open.

4)
nothing happens (right click on desktop and "display settings") or using gnome-control-center display throws the above mentioned error message.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: gnome-control-center 1:44.0-1ubuntu6
ProcVersionSignature: Ubuntu 6.2.0-33.33-generic 6.2.16
Uname: Linux 6.2.0-33-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: GNOME
Date: Sun Sep 24 16:31:26 2023
InstallationDate: Installed on 2023-06-24 (92 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to lunar on 2023-09-18 (6 days ago)