We had a client complaining that their mix didn’t sound right on Peacock. They said the VO overpowered the music. They were sure I sent the wrong mix, or made a mistake with the specs. I assured them that it was the same mix that went to ER. Then we found this: Peacock Becomes First Streamer To Use All Dolby Picture And Sound Technologies—Including Dolby Vision 2.
Check out paragraph 3.