Apple TV 4K - Riding zwift and watch youtube/netflix/

Hello

Is it possible to run zwift on your apple tv 4k and do some picture in picture to watch an movie on netflix or youtube? I allready tried it, it worked but had no sound. Used my iphone to airplay youtube to my apple tv, then picture in picture to start zwift. It worked but I heard no sound of youtube.

Is there something I can do to have sound from youtube or netflix? - I want to run zwift fullscreen and in the smaller pichture in picture screen play youtube or netflix.

Or is there an other methode do have zwift an youtube on the same screen?

Thx

You found the only drawback in AppleTVs PiP system: You get no sound of the small picture. I´m afraid the only workaround is an additional tablet etc. to run youtube or netflix.