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.

Maya 2024 is required for native Apple Silicon support.

Well, Engine on Mac, with Apple silicon, does not seem to work in Maya 2024 or 2025. Can I get some help with that? I have Unity Engine working with Build 20.0.688 default.

Thanks for your patience. I found that there was an issue with our macOS installer that was preventing the plugin from being included on Apple silicon. This has been fixed in 19.5.1031 and 20.0.758.