Here is a setup to get Houdini Engine working natively on Mac with Apple Silicon with Unity Engine. Then Engine is working with Maya 2023 on the same Mac. Nothing seems to work for Maya 2024.
19.5.752 for the native M Chip and work with Unity.
19.5.769 py37 is emulated Intel and only works with Maya 2023.
It's a bit of a pain having two installs for Engine, but it works.