One of the main draws for me is the fact that the same company maker the software and hardware, and that they optimise them for each other.

There’s a difference between the OS and the underlying structure/how it operates, and the software you use under that OS.

You can run MacOS but use Excel over Pages, or Firefox over Safari, still a different experience than using the same software under Windows.

Could you elaborate a bit on that please? I’m curious what the difference.