Sorry for the late reply. I wanted to follow up and see if you are still in need of any help? Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.
Sorry for the delayed response.
If you're still having problem with your Google Nest Hub volume while watching DirectTV, try these steps:
Just checking in to make sure that you saw my response. I'll be locking this thread if we won't hear back from you again in 24 hrs. Should that happen, feel free to create a new one if you have more questions or have other concerns in the future.