only a handful of investigators at most have been assigned to work on the Nord Stream case on a full-time basis.
the perception among investigators is that the will to solve the case is not particularly pronounced in the capital. Politically, it is easier to live with what happened if it remains unclear who is behind the attacks.
A one weird thing is that Russia surprisingly didn’t push this issue very hard. I expected a lot of Russia-sponsored propaganda and finger-pointing in the German mediaspace, but there wasn’t that much.