In my case for the PDX area:
- Android OnePlus 7T phone, HDHomeRun App version 20201022: Video works, no AC-4 audio on any ATSC 3.0 stations
- Amazon Firestick 4k, HDHomeRun app: No video or audio on ATSC 3.0 (it gives an error stating that it cannot decode audio and does not display video)
- Linux Mint 20: Video plays fine using VLC, no audio on ATSC 3.0 stations
- Roku 4 (4400X), HDHomeRun app: Video but no audio on ATSC 3.0 stations