@igrigorjevs Its not normal for the camera to stop when screen sharing, so clearly something related to either your device or network. It's quite hard to debug so I would perhaps raise a support request with Microsoft, but typically looking at the Call Records for the rooms user in Teams admin might uncover something, or retrieving the logs from the device Microsoft Teams Rooms maintenance and operations - Microsoft Teams | Microsoft Learn
I would be most suspicious of your network creating an issue, if you can try attaching the device to a different network with uninhibited access to the internet and see if the problem goes, it could well be that a firewall is blocking Teams traffic under certain conditions.
