Sync Box + Roku StreamBar Pro

I have a two-part question.

Currently, I have a Samsung TV connected to a Philips Hue Play HDMI Sync Box. The devices connected to it include a Apple TV, PS5, Xbox S, and the Philips Hue Play HDMI Sync Box.

Now, I want to add a Soundbar to this setup. I have decided to get a Roku Streambar Pro. However, I would like all the connected devices to play sound through the Streambar Pro, and I also want the Hue lights to work.

Is this asking for too much? Should I just get a regular SoundBar instead? If so, which one would you recommend?

If it is possible to add a Streambar Pro to the other devices with the Sync Boz, how should I configure it?

My other question is unrelated but a quick one. If I decide to get a Nintendo Switch or another device, can I add another Sync Box to the same TV?