In-game voice chat is currently broken in Big Walk when playing on a PS Portal using cloud streaming. You will see a message that reads “Communication disabled while party chat is active” and all player voices are muted.
This is an ongoing issue that we have repeatedly tried to fix in different ways. Unfortunately this is a difficult issue for us to test as cloud streaming isn’t available in Australia.
We will continue trying to fix this. Apologies, and thank you for your patience!
Voice chat should work as expected when streaming from your PS5 using Remote Play.