Okay, so no one else is updating their status with their problem, I guess I will.
After some back and forth with tech support, I found that if I just selected the "auto select" audio option, the Ultra picks "Dolby Atmos DD+" which is otherwise unselecteble. That makes the audio much better, but is still 10-12 points lower audio then my Xbox One or old Roku Streaming Stick. On top of that, now when I watch videos on Youtube, the first 2-3 seconds of audio are muted.
Seriously considering returning this dud and going back to my Streaming Stick, at least it worked.
How did you do that exactly? I've looked in the settings and can't seem to find it. I just got mine today and got into my tv settings and turned on the auto leveling on the audio, so far that seems to have solved the problem for me.