2.7TDI Multitronic knocking noise during cold slight accelaration

Hello, recently a weird knocking noise started happening when the car is cold, it's only happening during acceleration when going above 50km/h, I have recorded a short video which clearly shows that rattling noise.

https://www.youtube.com/watch?v=QpcESav63ws

I have looked around forums and found that this could be dual mass flywheel going bad? But there is no noise when the car is warmed up, as well as no noise when shutting off the car or starting the car.

Does anyone have any tips? Suspension was checked recently and no faulty parts were found, even though CV joints are a bit worn, but these are still good according to the mechanic.