Cinnamon Queen is a marketing name. They are not a breed. Do you know which hatchery they came from? That might help us some in knowing a bit about them.
Not all hybrids are the same. The commercial egg laying hybrids are highly specialized egg layers. They are bred to produce a lot of Grade A large eggs in one or two laying seasons and have small bodies so that the feed they eat goes to egg production, not body maintenance. They are not bred for longevity. After their second adult molt egg production drops enough they are no longer that profitable so commercial operations replace them. These are the hybrids your brother was talking about. Some people keep them for longer than two laying seasons but they are prone to medical issues.
Cinnamon Queens are also hybrids, a cross between a Rhode Island Red rooster and a Rhode Island White hen, at least the ones I found. If my memory still works I believe one hatchery called their Rhode Island Red rooster over Silver Laced Wyandotte hens cross a Cinnamon Queen also. Just a marketing name.
These are not the commercial hybrids. The baby cockerels will hatch with yellow down, the pullets hatch with brown down so you can easily sex them. These chicks will inherit their traits from their parents. Their parents are not the commercial egg laying hybrids. Your brother is not totally wrong, he was just talking about the wrong hybrids.
Your Amberlink rooster is one of those commercial hybrids. But a rooster does not lay eggs. He's not going to have the potential medical issues an Amberlink hen would.
I don't know what your other three are. Where did you get them? What did they call them?
I pretty much agree with River Otter on how to manage any hatchery chicken. If you want longevity don't overfeed them or stress them out. If you want productivity that is another situation.