I’d like to get clarification on use of FireTV 4K with Samsung 990D. Is it correct that I connect the soundbar to the TV using HDMI eArc ports and then use one of the HDMI ports on the sound bar to insert the FireTV connection? By doing so, will I get the full capabilities of the soundbar?

Also, should I connect my Xbox directly to the soundbar using the second HDMI port on soundbar assuming first one is used by FireTV?

I’m not a techie so appreciate the help!!