Clement has this thread on twitter about the new fortifications:
https://xcancel.com/clement_molin/status/1965083876453130438
They are in the open, nice view, very impressive.
The Surovikin line had similar impressive lines for the whole world to view. No men in any of them as the 2023 Ukraine offensive started in June. What made the real difference were the troops dug in in the cover of the treelines and bushes.