Unfortunately it is still not possible to control the video input’s zoom level. The closest thing to this that we have is adjusting how the video is displayed on the receiving end via MobileRTCVideoUnitRenderInfo, but that requires a custom meeting UI implementation and there is no way of enforcing that all users joined the meeting via a specific SDK app.
Based on the content of your other topic, I do not believe two separate topics are needed for this. The feature you are looking for is not supported by the SDK. Also, as noted in our documentation, the Meeting SDK is the only SDK that is compatible with Zoom meetings. If you have any questions specific to the Video SDK, you are more than welcome to create a new topic in the #mobile-video-sdk category. Otherwise for any follow-up questions related to this topic, I will be more than happy to help in this thread.