Noise interpretation: knocking, bearing damage, or what?

Servus, Have more or less from today to tomorrow the problem that my passat between 2 and 3k sounds like a diesel. If you drive e.g. at 2k revolutions and give slowly more gas, there is a point from which the “nag” becomes loud, but with further gas do not really give louder. Engine has power as always, oil is changed all 10kkm. With a video, as noises everyone perceives differently. https://youtu.be/kGzUcBiYvQI Meaning is the clapping at the full gas give the quiet “Ventilk Lappern” in the background has been driving for tens of thousands of kilometers. 200,000 on the clock, always warm. Passat 3BG with 2.0 and 116hp.