OBS Studio version 30 beta is out, as of the second half of August, 2023.
Due to a library update inside OBS Studio, certain plugins, including Stream Deck will cause it to crash on macOS. This seems to not affect Windows.
Update: Stream Deck 6.3.1 was released with a fix for the crash and OBS Studio version 30 can be used.
We are working on an update for our OBS Studio Stream Deck plugin so that it is compatible with OBS Studio version 30. We appreciate your patience while we work on this solution.