Now that I have a HomePod I'm considering Philips Hue lights. I’ve read that I need the Hue bridge along with the lights. But here’s where I’m confused: we have an Echo Plus in our bedroom, which is a home hub, and it controls a Hue light-bulb with no Hue bridge required (in fact that’s why we bought the Echo Plus and not just the Echo, since the Plus has the built-in home hub). The Apple HomePod is also a home hub, and yet the HomePod requires the Hue bridge. Why does the Apple HomePod need the Hue bridge when the Echo Plus does not? Shouldn’t they each require the Hue bridge?