Check your video background for noticeable clutter and pay attention to what is being shown on camera. The beauty of video is that nobody knows what is going on outside of the frame. Taking a few minutes to make the bed and move that pile of books and coats off-camera can help the audience stay focused on the presentation and not the presenter's environment.
Some video conferencing applications also support a background blurring or replacing function
which could be used to obscure any distracting elements in the video background.The ideal position for a presenter's webcam is at eye-level. If you're using a built-in laptop webcam, you can raise it up by placing a few textbooks or a shoebox underneath the laptop while sitting at a desk or table. Just a few extra inches of elevation can make a big difference; there's no need to build a toppling tower to achieve true eye-level.