I suspect this may be something that can't be controlled, but I find that what happens is:

• I launch UnityHubNative on Mac and it's deliciously fast. I tell it to open my project.
• My project launches correctly in Unity, hooray!
• But then the official UnityHub opens automatically too 😫

I guess this is something on the Unity side, I don't suppose there is anything we can do to prevent it? (I guess I could just delete it! But I'd like to keep it around just in case...)