By default, the security concerns do massively outweigh the benefits, to me. On my work machine the benefits outweigh the security issues, because it’s tightly locked down.
But if we can figure out how to safely implement such a system with very tight controls, it will be a huge game changer for individuals.
I’m sure large businesses are doing exactly that. It’s one of the first things I thought of - if you and I can think of it, you know Corp is already on it.