How would the perfect boss be in your opinion?
Both for the best of the company and for you as an individual

none! Abolish capitalism! 😄

One of the best bosses I ever had openly admitted that he didn't understand all of the stuff that I did, but that was exactly why he had hired me in the first place. He would tell me what to do, and I was largely free to decide how. Only when I had several options with different implications on cost and schedule, I would discuss that with him.

A boss does not have to know how to do your job, has to be able to procure everything you need to do it better.

As simple as that.