Have you tried CloudCompare? Native Mac ARM support.
(Edit: just so you know, the UI is a bit weird, there is a bit of a learning curve. But the app behaves in a very sane manner, with every step the previous state is maintained and a new node is created. It takes time to get used to it, but you'll learn to appreciate it.
May your cloud have oriented normals, and your samples be uniformely distributed. Godspeed!)
I like cloudcompare, but it's not really in the same space. I'm trying to achieve bulk tile processing of large datasets using LASTools