Live camera is no longer a part of the new APIs current list of supported Capabilities (though the list is evolving).
In other words, SmartThings seems to be pulling back from integrating streaming IP cameras and similar from their platform.
Media Control (TVs, playback, etc.) are still included; but perverting these Capabilities isn’t likely advisable.
https://smartthings.developer.samsung.com/develop/api-ref/capabilities.html#Capabilities