Does adding a smart sound system to a smart TV add unnecessary complexity?
I already have a Samsung HDTV Model # UN55F6350AFXZA. If I add a Samsung Smart system. HT-F4500 or HT-F5500W add unnecessary complexity since both the TV and sound system connect by wifi?
No added complexity at all. The HDMI cable will only transfer audio and video like any other TV/Home Theater connection.
Both devices will connect to your router. They are separate. The only "management" is to remember which apps you've logged in on. While you can use Netflix on both the TV and Home Theater system, it's probably a good idea to choose one to avoid confusion - although, either will work.
Thanks for your support of Samsung products.