Thanks @SleepyRon. I am purely using USB on the front panel to connect via NDI to OBS. The output is most definitely not 720p 1280x720. It is 720x480 3:2 aspect ratio that is not 16:9. This actually seems reflected in your video at the top of this post.
Here is a screen shot from my output with pixel dimensions to illustrate what I am talking about.
So when you say “native 720”, are you referring to 720x480 3:2 aspect ratio? If that is the case, ok, fine, that is what it does and what it is designed to do.
My question to you then is, when using USB on the front panel to a computer directly, with no other cables plugged in, is this supposed to be displaying at 1280x720 720p or 720x480 (which is a padded 3:4 SD resolution)?
Follow up, is it possible just using a USB cable on the front panel with NDI to get the desired 1280x720?