Hey, knightmare! There’s actually a few different issues for Heroes of the Storm that we’re aware of. We have them listed here:
For the voice chat issues on Catalina, there’s a thread here about the issue. It’s quite advanced and not something that we can directly support as it requires changing some things using the terminal.
A lot of these are bugs that our team needs to work on and some requiring some work with Apple as well. As technical support, we try to keep everyone in the loop regarding the issues when we receive updates, but we are not the developers or directly apart of the Heroes of the Storm team. We only help with technical issues that can be resolved through troubleshooting.
Since this is the technical support forums, the Heroes team may not check it as often as they do the other forums. It’s frustrating, but please feel free to voice your concerns regarding any bugs on Bug Report forums or the General Discussion for any feedback!