No computer sound while connect android to android

Lyosha12 Posts: 2 ✭✭

My friend connects to me.

His phone: Android 10, Model: M1903C3EG

My phone: Android 10, Model: Samsung A50 (SM-A50FM/DS)

In settings of my friend's phone checkbox "Play pc sounds" active but he did not hear any internal sounds in my phone (when I see video or listen to music).

What I can do and what can do my friend to solve this problem? Maybe need additional data?