In our first tests, the ThinkPad X1 Carbon G9 still struggled with performance issues. After several BIOS updates, the performance is now stable, but also lower. The optional ePrivacy screen also remains problematic.
https://www.notebookcheck.net/Lenovo-ThinkPad-X1-Carbon-G9-laptop-review-The-ePrivacy-screen-remains-problematic.578488.0.html