I also have a long narrow bedroom (sort of similar), so I mounted my tv and also turned my entertainment center into a floater. Im gonna link you to the tv stand I have so you can check it out but with the colors I think I see, sorry its hard to tell, it looks like it would also go well in your living space
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https://www.amazon.com/Mecor-Console-Storage-Cabinet-Drawers/dp/B07YC852C5?th=1
It's very sleek and hardly in the way taking up minimal space, then I also bought 2 16" heavy duty L brackets to mount it to my wall, and it looks awfully good with a mounted tv above. There's also a white version of it