Plex Media Server is incompatible with Intel Compute Runtime after 21.49. Intel changed the API after 21.49. Plex Engineering is working to make PMS compatible with the new API.
You’ll need to uninstall the current versions and install ICR 21.49.
You should also mark each package so it will not auto-update: sudo apt-mark hold pkg_name
Future versions of PMS will mark the packages automatically. Additional details: Ubuntu 22.04 Packaging - development & preview.