Raspberry pi 400 - Zoom chromium extension and breackout room

Hi I experiments trouble when the host puts me in a breackout room becouse video starts flashing and when I’m back in the main room I can’t see desktop shared by host any more, I see only a black monitor.
Consider that android app works worst. My last option is trying to use Zoom directly in chromium without extension
Could you help me?

Is this with FydeOS for You - Raspberry Pi 400 release?

Yes It is

FydeOS v12.0 (Raspberry Pi 400 release version) Platform 13729.22.12.4 (32-bit)