Two screens, play sound separately?

I have two screens.

I want to watch Netflix on one screen and hear the sound on this monitor while I'm playing on the other and hear the sound from the game on the one where I also see the picture.

Is the? Or can you only play the sound of both on one?

At most you hear both mixed. So both from the main speaker.

You could try changing the output of the two programs

So you can't do it separately?

Where do i do this

This is possible with an additional external sound card. For example this: https://www.amazon.de/...07HMWHBXS/

Then install the Netflix app from the Microsoft Store. In this app you then assign e.g. The external sound card in the settings and the onboard sound of the PC in the settings for the game. Or the other way around.

Go to the sound settings and scroll down until you find "App volume and device settings"