Black video in ChromeOS since latest websdk updates

We implemented @zoomus/websdk in our ChromeOS PWA.
Since latest versions video for all meeting participants is just black.
Audio works normally and local video renders properly in the video preview before entering the meeting, then it also looks black.

Is there specific ChromeOS settings we need to enforce in our managed devices for video to work normally?
How can we further debug this?

Thx!